The only exception is that the first argument number is 0. Instead of process.env.npm_config_myVar, try process.env.npm_config_myvar. More on such scripts here. You can, just as at the command prompt, run this command with all options in a separate file. npm configuration. How does paying off the mortgage work if I demolish a home and rebuild another home on the property? Simply define the values in a config node in package.json like this: " Try to use symlink instead. Run npm Script: select this option to execute an npm script. Example: Like in bash, -- instructs PowerShell to treat all following arguments as literal strings, and not options (E.g see this answer). Getting error "Need to acknowledge to Apple's Apple ID and Privacy statement.". Passing in arguments via the command line is an extremely basic programming task, and a necessity for anyone trying to write a simple Command-Line Interface (CLI). on August 24, 2015 The -- notation tells your script to pass the parameters to the current command invoked by NPM.From the NPM docs: "NPM will pass all the arguments … Second, create a file … -p), --is necessary otherwise npm will parse them and treat them as npm’s option. Use process.argv in your code then just provide a trailing $* to your scripts value entry. npm is the package manager for the Node JavaScript platform. I wanted to have a short script command in my package.json file and to provide --name argument at the same time, The answer came after some experiments. The issues seems to be that the command is interpreted one time more than expected, loosing the '--'. npm run start -- 4200, This will run for passing command line parameters but what if we run more then one command together like npm run build c:/workspace/file, but it will interpreter like this while running copy c:/file && ng build c:/work space/file Which three commands should you run in sequence? I find it's possible to just pass variables exactly as you would to Node.js: npm run script_target -- < argument > Basically this is the way of passing the command line arguments but it will work only in case of when script have only one command running like I am running a command i.e. Please note that nodejs version is one thing and npm version another. - Sending a command line argument to an npm script. ... And I can pass any arguement when I call it ... At this point, using symlink is the best way I could figure out, but I don't really think it's the best practice. This feature is available on NPM >=2.0.0 | See the Docs. However, putting -- twice or putting "--" once before the arguments does the trick. This can be accomplished, also using normal “linux” commands, with the & switch or what you call it. We will see later, under Watching, we will have the need to start more than one thing simultaneous, running tasks in parallel. In the NPM Script dialog that opens, specify the npm run/debug configuration settings . npm start 8080 => node ./script.js server 8080). @marcusoftnet. Now, whenever you run npm run build, it will trigger all the commands, making sure they were called in a correct order. Meaning that we something changes on the server nodemon will restart the server for us. Until you load it into the current shell. It puts modules in place so that node can find them, and manages dependency conflicts intelligently. For example, to use nodemon that installed in local node_modules, we can't call nodemon directly from the cli, but we can call it by using ./node_modules/nodemon/nodemon.js. There’s some small things with the npm command that is easily missed and that can prove useful. …which means I can run npm start to start the server. Let's look at some examples in more … Flexible npm scripts Join Stack Overflow to learn, share knowledge, and build your career. I create a symlink... ln -s node_modules/sequelize/bin/sequelize sequelize. The difference is clearer when you use a param actually used by npm: To get the parameter value, see this question. site design / logo © 2021 Stack Exchange Inc; user contributions licensed under cc by-sa. Simply define the values in a config node in package.json like this: This can now be used in your JavaScript code like this: If you’re like me you probably just went: “Eeeeh…? The arguments will only be passed to the script specified after npm run and not to any pre or post script. Any parameter you pass to npm at the command prompt is used for that entire command. Compared to grunt or gulp files, they are easier to understand and maintain. npm start 8080 => node ./script.js server 8080). The output is. What I'm trying to say, if you just want to start your server with the node command, I don't think you need to use scripts. This is where the power of NPM scripts starts to show itself. They behaves the same: npm run test -- 8080 production npm run test 8080 production But when the arguments contain option(s) (e.g. This will of course require that you have permissions to execute that script. For example, npm run example --foo-bar=baz would correspond to ${npm_config_foo_bar}. The purpose of start-script.json is to read default.package.json, extract the scripts and look for npm run scriptname then append the passed arguments to these scripts. If --scripts-prepend-node-path=auto is passed (which has been the default in npm v3), this is only performed when that node executable is not found in the PATH. Run npm help to get a list of … I've shared a distinct example of usage, isn't it obvious? This is yet another way to set parameters for your scripts. For example if our package.json looks like this: { "name": "demo", "scripts": { "example": "echo 'hello world'" } } You'll be able to run: npm … This will fire up both the npm run watch:server and npm run watch:client at the same time, concurrent. So far so good. it looks lilke npm change it to lowercase, Great solution, works with lower case param on npm 6.5.0, @K-ToxicityinSOisgrowing. How to pass arguments on the command-line to an npm script. && npm run tslint && echo 'lint clean! {*}-- All arguments as combined. I’ve written two posts on npm scripting with package.json and during the course of these post I’ve picked up some tricks that I didn’t really use in the posts. NPM will execute the script before your package is packed and published, and also when you run npm install locally without any arguments. You can pass parameters to any command. Is it a fundamental tenet of liberalism to allow the expression of illiberal ideals? This, and other posts on npm scripting, has drawn a lot of attention. It still works for me. Here’s that example again: By using the | you can take the result of one task and pass it on to the next. Works with npm version 6.8.0 but only when I used lowercase for the variable name. Can anyone identify this pusher plane from apparently the 1930s? npm scripting: configs and arguments… and some more tricks First, install JSHint: npm install jshint --save-dev. Anyone got it working maybe? This could of course be named arguments too: npm test -- reporter:spec for example. Problem with this is, it always appends the arguments to the end of the script. Take your JavaScript development up a notch Get started today for free, or step up to npm Pro to enjoy a premium … In this example NODE_ENV, read NODE_ENV in server.js either prod or dev, As of npm 2.x, you can pass args into run-scripts by separating with --. The accepted answer did not work for me with npm 6.14. That in itself can be useful as documentation. Now when I make a change on the server Nodemon will reload the server. Most commonly, it is used to publish, discover, install, and develop node programs. Usually I have like 1 var I need, such as a project name, so I find this quick n' simple. I'm using an app originally created with create-react-app. Kudu will look at a couple of things to determine how to deploy your app. Do I commit the package-lock.json file created by npm 5? Calling npm completion will create a .sh file that enables the tab completion for the package.json in the current directory. So for our mega-build-script-calling-into-other-scripts thing we built before: we can simply turn logging up or down by going npm run deploy:prod -ddd or npm run deploy:prod -s. This can prove very useful as a setting to tweak in your build server for example. This, and other posts on npm scripting, has drawn a lot of attention. [UPDATED] I wanted you to know that I have created a PluralSight course on this topic, published in late October 2015. myAppTabCompletion.sh. Just giving the command npm run will list all scripts in your package.json. In the UK, can a landlord/agent add new tenants to a joint tenancy agreement without the consent of the current tenants? 引数は npm run の後ろに指定されたスクリプトにのみ渡され、pre や post のスクリプトには渡されません。 Let’s say that our application accepts the port number to start it on as an argument; node app.js 3456, or the port set in the ENV defaulting to 3000 for example. But I missed a important tidbit of information. here's how to pass the params to those scripts: Note: If your param does not start with - or --, then having an explicit -- separator is not needed; but it's better to do it anyway for clarity. There’s a feature of npm that I didn’t know of until a couple of days ago; if you pass -- (there’s a space after the --, right there) you can “pass argument through” to the underlying command. YAML snippet # npm # Install and publish npm packages, or run an npm command. But "ver" is acceptable, for example :). The package.json file dictates what modules will get installed in the node_modules folder. Here’s two versions of a linting task; one with options in-line and one in a .jslint options file: Yeah… I stand corrected. Should I be worried that I don't have ideas of questions to ask during seminars? Most of the answers above cover just passing the arguments into your NodeJS script, called by npm. I just went in and checked that, I am now bumped to v14.9.0. Syntax for sending command line arguments to an npm script: Imagine we have an npm start task in our package.json to kick off webpack dev server: We run this from the command line with npm start. '; }; f", The nicer way to set the "myPackage:myPort 9090" value is with a config flag to the command "--myPackage:myPort=9090" -, This works really well. By simply listing that folder we can easily see all the commands we can use: This also means that we can use these command straight off without prefixing them with ./node_modules/nodemon/bin/nodemon.js as I have done before. npm scripting: git, version and deploy Also, don’t miss the other posts on this blog on npm scripting: I tried to put npm run build in the scripts section of package.json, but that doesn't work. I'm trying to create a script that uses, Hello. Like this: Now the tab completion, for myApp mind you, will be enabled in all new terminal windows (so start a new one to try it). See table here, Sending command line arguments to npm script, keithcirkel.co.uk/how-to-use-npm-as-a-build-tool, blog.risingstack.com/node-js-windows-10-tutorial/…, docs.microsoft.com/en-us/windows/nodejs/setup-on-wsl2, Sequencing your DNA with a USB dongle and open source code, Podcast 310: Fix-Server, and other useful command line utilities, Opt-in alpha test for a new Stacks editor, Visual design changes to the review queues, Passing arguments to npm script in package.json, how to pass options to scripts using npm babel and commanderjs, Pass params to Angular 6 app through npm commands, Passing parameters to package.json scripts, Node v15.5.0 doesn't read command line flags. You can however configure it (the value will be stored by npm in its internal storage): Then, when invoking npm start, 9090 will be used (the default from package.json gets overridden). rev 2021.2.5.38499, Stack Overflow works best with JavaScript enabled, Where developers & technologists share private knowledge with coworkers, Programming & related technical career opportunities, Recruit tech talent & build your employer brand, Reach developers & technologists worldwide, This also works perfectly together with packages like. In this tutorial, we are going to run the node.js application and pass command line arguments without using process argv but with using yargs npm module. If you try to run a script without having a node_modules directory and it fails, you will be given a warning to run npm … Thank you for reading this Since almost everybody is using npm as their package manager, it makes sense to profit from its ability to run scripts. [UPDATED] The naming convention in npm uses a colon to group a whole set of specific tasks. As an example try it with a simple script which just logs the provided arguments to standard out echoargs.js: process.argv[0] is the executable (node), process.argv[1] is your script. For example, you want to add the npm script someprogram --env=, where someprogram just prints the value of the env argument: This doesn't really answer your question but you could always use environment variables instead: Note: This approach modifies your package.json on the fly, use it if you have no alternative. So, to simplify this long typing, we can put this... ... then call npm start to use 'nodemon' which has app.js as the first argument. NPM-Run-All. However, I would like to be able to run something like npm start 8080 and have the argument (s) passed to script.js (e.g. Making statements based on opinion; back them up with references or personal experience. Do I have to pay a web hosting company for an SSL certificate? And viola! After this, it will create a new package.json and copy the data from default.package.json with modified scripts and then call npm run start. Use it, if you like for you app development. What software to buy to have a macOS VM on my Linux machine? What is the appropriate length of an antenna for a handheld on 2 meters? This means all the chained scripts don't get these arguments(Args maybe or may not be required by all, but that's a different story.). This article might shed some light on environment variables in npm scripts: (TL;DR commands go straight to the host OS, even if launched from another shell), Also, be careful when you are trying to inject "v" or "version" to command - npm thinking, that you are trying to determine it's own version and will output you it ignoring command. For example -s turns logging more or less off (-d is more logging, and -ddd is silly logging, try it! SUCKS!? Neither adding no -- nor including it once does work. However, I would like to be able to run something like npm start 8080 and have the argument(s) passed to script.js (e.g. Syntax for sending command line arguments to an npm script: npm run [command] [-- ] Imagine we have an npm start task in our package.json to kick off webpack dev server: "scripts": { "start": "webpack-dev-server --port 5000" }, We run this from the command line … Your $1 … If something changes on the client, our browser(s), will be reloaded. This can be really handy to create versions of a script without having to rewrite it over and over. Why does starship flip vertical at the last moment instead of earlier. npm also supports a config object. To learn more, see our tips on writing great answers. By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy. That works (and is pretty cool to get tab completion on our scripts), but should you want to add another app it might get unwieldy. which means I can run npm start to start the server. Note that this work-around does not require GitHub npm issue #3494 to be resolved. The client will be reloaded with the help of live-reload that simply is a server listening on port 9091, our case. Select and Place: Show Suggested Answer Hide Answer. We're npm, Inc., the company behind Node package manager, the npm Registry, and npm CLI. 2020, npm scripting: configs and arguments... and some more tricks. I’ve written two posts on npm scripting with package.json and during the course of these post I’ve picked up some tricks that I didn’t really use in the posts. NPM Init. How do I pass command line arguments to a Node.js program? comments Sometimes it might be better to externalize the details of a script. The scripts field holds an object where you can specify various commands and scripts you want to expose. To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order. Find the version of an installed npm package. In Node.js, as in C and many related environments, all command-line arguments received by the shell are given to the process in an array called argv (short for 'argument … Something that does work and that is a great help, especially during script-development, is to list all the binaries that your packages exposes. This doesn't answer the question at all. Passing arguments to script. For example npm completion >> myAppTabCompletion.sh will create a file called myAppTabCompletion.sh with the necessary code to get tab-completion to work. The output of the browserify command is a bundled file with all the code from all the required modules into one file (the -t reactify is simply packing up .jsx React stuff). This could of course be named arguments too: npm test -- reporter:spec for example. The production usage of my app is as an .exe, so passing the arguments in the exe works fine but if want to do this during development, it gets problamatic. We can use special npm command --and pass parameters directly into all running scripts. But it doesn’t work. Unfortunately it doesn't work with Windows as that has a convention of its own. Now all of that is packed into the build-js command. What's the difference between dependencies, devDependencies and peerDependencies in npm package.json file? How can I uninstall npm modules in Node.js? Here is my command in package.json, ... and here is an example of running it in terminal to generate a seed file for a user. Typing npm start or node app.js has the same effort. jakub.g's answer is correct, however an example using grunt seems a bit complex. So far so good. It’s a little bit weird I think but here’s how it works. 5000 via command line would be as follows: As mentioned by jakub.g, you can alternatively set params in the config of your package.json, npm start will use the port specified in your config, or alternatively you can override it, An example of reading a variable set in your npm script. npm start … I’ll be working of the code here and add all the features I describe (as far as possible) to that repository. For example, in your "scripts" JSON value, include--. The value of port, or any other config value can be overridden at the command prompt: It can also be overridden by other scripts: Pretty nice, and yet another option to use. Those are similar to Shell Parameters. Also, if the --scripts-prepend-node-path is passed, the directory within which node resides is added to the PATH. I have created a javascript file: start-script.js at the parent level of the application, I have a "default.package.json" and instead of maintaining "package.json", I maintain "default.package.json". Finally, you can programmatically know whether the NPM scripts succeeded or … We offer those to the community for free, but our day job is building and selling useful tools for developers like you. Moving on, this package is another popular option from NPM, … I had been using this one-liner in the past, and after a bit of time away from Node.js had to try and rediscover it recently. From what I see, people use package.json scripts when they would like to run script in simpler way. I love blogging. {1} is the 1st argument. Pre and Post hooks for npm scripting You asked to be able to run something like npm start 8080. Nice! In one of the code examples above, we run all lint tasks in … If I wanted to share another example for a technique already explained in a different answer, I would add my example as a comment to that answer. How to direct vue-cli to put built project files in different directories? I know there is an approved answer already, but I kinda like this JSON approach. sh) call and pass the arguments as usual. The initial run looks fine, but haven't tested thoroughly. What is the --save option for npm install? An example where this is likely to happen would be for a linting task, that potentially could have a lot of parameters. Note: If you are using an argument with hyphens, these will be replaced with underscores in the corresponding environment variable. If you change your lint command, all the variations will inherit the modifications.Is also easier to read and quickly understand. The way you retrieve it is using the process object built into Node.. If you liked this post I know you will love the course! npm will re-install Underscore v1.9.1, even though we just saw that v1.9.2 is available. This post will hence be a bit less structured by contain some small tidbits of information for you to, hopefully, enjoy and use. - task: Npm@1 inputs: #command: 'install' # Options: install, publish, custom #workingDir: # Optional #verbose: # Optional #customCommand: # Required … Also, don’t miss the other posts on this blog on npm scripting: If you liked this post I know you will love the course! Because I learn so much. ... support a wide variety of use cases. But NPM also let’s you define your own custom scripts. The env script is a special built-in command that can be used to list environment variables that will be available to the script at runtime. The arguments are just appended to the script to be run. $ npm run start 8080 > example@0.0.0 start /path/to/package.json > run-p "start-server -- --port {1}" -- "8080" There are the following placeholders: {1}, {2}, ... -- An argument. But there's a related GitHub issue opened on npm to implement the behavior you're asking for. Skip to main content ... $ npm run nested -----arg ['--arg'] Please support this site and join our Discord! npm scripts are managed inside our package.json and can be executed with the npm run command. This requires that you include a simple script-tag on your page: As you probably can see scripting in the package.json file can only get you so far. You can enable tab-completion in npm for all commands and even the scripts in the package.json too. and we are expected something like this If you have a package.json, Kudu will think you have a Node App. Create the following minimal package.json file: All of this is nicely documented in the npm official documentation: Note: The Environment Variables heading explains that variables inside scripts do behave differently to what is defined in the documentation. The arguments will only be passed to the script specified after npm run and not to any pre or post script. What I was missing specifically the "npm_config_"prefix to the variable name that you're specifying at the command line. It's possible to pass args to npm run since npm 2 (2014). A battery is not connected to anything. You can also do something like, I seem to be unable to do this in windows with git bash. copy c:/file c:/work space/file && ng build. I don't know how it got 6 upvotes, but congrats :), Is this the same technique as that explained in the accepted answer back in 2013, to pass. To pass arguments to npm script, you should provide them after --for safety. Is this possible? From the NPM docs: "NPM will pass all the arguments after the -- directly to your script". Now if I want to pass some arguments, I would start with maybe: What this does is: npm run build && npm run watch -- --config=someConfig. For example, if you have the following command defined in your package.json {"scripts": {"cy:run": "cypress run"}} …and want to run tests from a single spec file and record the results on the Dashboard, the … The -- notation tells your script to pass the parameters to the current command invoked by NPM. npm script pass parameters/arguments to node script using yargs. I've found this question while I was trying to solve my issue with running sequelize seed:generate cli command: Let me get to the point. I see, people use package.json scripts when they would like to something... Package.Json in the node_modules folder argument, do n't use script either service, policy... Another way to achieve this, it appears that it lowercases the variables! Or node app.js has the same location as the package.json in the section above on running in parallel often! Npm for all commands and even the scripts in your `` scripts '' JSON,! Too: npm install downloads specific modules to the script before your package is packed the. A macOS VM on my Linux machine in place so that node can find them, and also when run. ' -- ' default.package.json with modified scripts and then call npm run and not any... Based on opinion ; back them up with references or personal experience is. Peerdependencies in npm package.json file if I understand it correctly you can, just as at the last moment of... Reporter: spec for example the arguments to a joint tenancy agreement without the consent of the examples! `` npm_config_ '' prefix to the next versions arguments too: npm test reporter...: to get watching and reloading of browsers it will create a.sh that., all the variations will inherit the modifications.Is also easier to understand and maintain silly logging, and is! Parameters might get out of hand I create a.sh file that enables tab. Our case Underscore v1.9.1, even though we just saw that v1.9.2 available! Live-Reload that simply is a server listening on port 9091, our browser ( s ), does. Ver '' is acceptable, for example, npm run watch: client at the command is one! Nodemon, and manages dependency conflicts intelligently find and share information worried that have. Npm scripts lowercase, great solution, works with npm version 6.8.0 but only when I make a change the. Of course be named arguments too: npm test -- 8080 -p use parameters! The CMD line arg stuff 'm attempting to use your example but I 'm trying create... It does n't work modify script.js or configuration files as follows method a lot of attention the myAppTabCompletion.sh./script.js 8080... This pusher plane from apparently the 1930s your scripts value entry them with. Package.Json currently looks like this: `` npm will pass all the variations will inherit modifications.Is. -- ' vs. gulp vs. grunt vs. Webpack they would like to run in. All of that is packed and published, and -ddd is silly logging, and dependency! That contains all the variations will inherit the modifications.Is also easier to understand and maintain script simpler. ( similar to npm run example -- foo-bar=baz would correspond to $ { npm_config_foo_bar.. Wan na change the parameter ”, clarification, or responding to answers! Easily missed and that can prove useful the browsers open will be reloaded with the help of that! 'Lint clean run the myAppTabCompletion.sh to ease the creation of new projects not... Package manager for the package.json file npm test -- reporter: spec for example: ) the above! Current directory writing great answers `` passing arguments to npm ) understand it correctly can! `` need to acknowledge to Apple 's Apple ID and privacy npm run arguments. `` change it to lowercase, solution. Also hope for your opinion to my answer your `` scripts '' value! Apple 's Apple ID and privacy statement. `` field holds an object where you can various! Reloaded with the & switch or what you call it already, but I can ’ t it... This quick n ' simple number of different ways to do that feed, copy and this! Nor including it once does work on this topic, published in late October 2015 the initial looks. This as much as possible any parameter you pass to npm ),. Devdependencies and peerDependencies in npm uses a colon to group a whole set of specific tasks building. Be passed to the script t get it to lowercase, great solution, works npm... By @ francoisrv, it makes sense to profit from its ability to run script in simpler way to from... Same time, concurrent before the arguments as usual 'd share, as use... On another issue being solved before building and selling useful tools for developers like you tasks in …...., install JSHint -- save-dev options in a script that uses, Hello place so that node can them. For npm install ) and develop node programs means I can run npm start 8080 = >./script.js... Modify script.js or configuration files as follows to determine how to deploy your app CMD line stuff. Reloaded with the necessary code to get watching and reloading of browsers symlink. Last moment instead of doing npm run will list all scripts in the correct order arguments are enclosed double... I want `` all of it '', NODE_ENV and the CMD line arg stuff thoroughly. Of things to determine how to direct vue-cli to put npm run since npm 2 2014! Config node in package.json like this:... which means I can not understand to. Modules will get installed in the scripts portion of my package.json is correct however. Trailing $ * to your scripts value entry see, people use package.json scripts when they like! Quotes automatically ( similar to npm script pass parameters/arguments to node script using yargs last post used! This and passing the port e.g to get around it Teams is a private, secure spot for you your! Terms of service, privacy policy and cookie policy in late October.. Can run npm script pass parameters/arguments to node script using yargs solution, with... To get around it our node server and a live reload functionality for our browser ( )! Know how to do this in my package.json currently looks like this:... which means can... Is the appropriate length of an antenna for a handheld on 2 meters above on running in parallel changes the... Npm issue # 3494 to be able to run scripts build-js command run will all. Looks like this:... which means I can run npm script with a space or equals.! Saw that v1.9.2 is available on npm 6.5.0, @ K-ToxicityinSOisgrowing this is passed to! Of it '', NODE_ENV and the CMD line arg stuff switch what. Have something like npm start to start the server for us just wrap the npm script pass to! Understand it correctly you can specify various commands and even the scripts in the node code which I... You could pick up some new and useful things here too with references or personal experience using seems! Get some nice feedback and learn more 1 … first, install --... Example npm completion will create a file … run npm start with all the will! Be executed with the & switch or what you call it JSON value, include.. Inc ; user contributions licensed under cc by-sa change it to work by @ francoisrv, it will a!, loosing the ' -- ' VM on my Linux machine some of the script to able. Commands, with the necessary code to get tab-completion to work for an SSL certificate then be executed using run., but I can run npm start to start the server nodemon will the... To ask during seminars simply define the values in a script without having to it... There a voltage drop between its plus and minus poles new projects life! As their package manager for the node code enable tab-completion in npm package.json file -- r=somethingElse the help of that. Same effort answer area and arrange them in the corresponding environment variable and reloading of browsers pusher plane from the... Lowercases the process.env.npm_config_ variables instead of doing npm run and not to any pre or post.... Which node resides is added to the PATH, so this is likely to happen would be for linting! Command -- and pass the arguments as usual a space or equals sign that way, by default start! ( this is likely to happen would be for a linting task, that potentially could have a app... N'T work with windows as that has a convention of its own to pay a web company. `` npm run arguments to acknowledge to Apple 's Apple ID and privacy statement..! At the command prompt, run this command with all options in a port to the script be... Work for me with npm version another value entry just went in and checked that, I to. Value entry and manages dependency conflicts intelligently we can use special npm command -- and pass directly. -- reporter: spec for example, in your `` scripts '' JSON value, include -- to do,! Here we start our node server and a live reload functionality for browser... Approved answer already, but our day job is building and selling useful tools for developers like you called. Require that you 're specifying at the command prompt is used for him n't find any way! Solution mentioned by @ francoisrv, it will create a symlink... ln -s node_modules/sequelize/bin/sequelize.! Usage, is n't it obvious variations will inherit the modifications.Is also to! Uses a colon to group a whole set of specific tasks course require that you could pick some! Or what you call it jakub.g 's answer is correct, however an example where this is where power! One time more than expected, loosing the ' -- ' script-name > I. Run will list all scripts in the node_modules folder otherwise npm will re-install Underscore v1.9.1, even though we saw...