By default npm installs packages using ^ which means any version in the same major range, you can switch this behaviour by using --save-exact

    // npm
    npm install --save --save-exact react
    
    // yarn
    yarn add --exact react


I created a blog post about this if anyone is looking for this in the future.

https://www.dalejefferson.com/articles/2018-02-04-how-to-save-exact-npm-package-versions/

That behavior is really driven by the one specifying the versions in the package.json. If the version number looks like &quot;1.0.0&quot;, without any other symbols, the exact version (1.0.0) should be installed.

So what you could do is simply modify the package.json and run a `npm install` then. Be sure to clear out the node_modules directory before you do that.

https://docs.npmjs.com/files/package.json#dependencies

You can also open `package.json` and change value for the package you want to remain exact. From `&quot;vue&quot;: &quot;^2.6.10&quot;` to `&quot;vue&quot;: &quot;2.6.10&quot;`. Notice the lack of `^` sign in front of the version number. 

Both of my colleague and I have experience in MVVM of Web App, while we are new to native android development. Now we have contrary opinions about android data-binding -- I&#39;m a fan of it while he is not.

My Arguments:

* Reduces boilerplate code which in turns brings
    * Less coupling
    * Stronger readability
* Powerful, easy to implement custom attribute and custom view
* Even faster than findViewById ([details](https://stackoverflow.com/questions/34712820/android-data-binding-vs-findviewbyid-for-performance))

His Arguments:

* The auto-generated .class increases app size.
* Harder to debug

I&#39;ve made some investigation but there are not many discussions about it. Now I want to collect the pros and cons of android data-binding.

Aspects of discussion include but are not limited to:

* unit test
* app size
* performance
* learning curve
* readability
* coupling

What are the pros and cons of android data-binding?

What is the **best** method of splitting a String into a Stream?

I saw these variations:

 1. `Arrays.stream(&quot;b,l,a&quot;.split(&quot;,&quot;))`
 2. `Stream.of(&quot;b,l,a&quot;.split(&quot;,&quot;))`
 3. `Pattern.compile(&quot;,&quot;).splitAsStream(&quot;b,l,a&quot;)`

My priorities are:

* Robustness
* Readability
* Performance

A complete, compilable [example][1]:

    import java.util.Arrays;
    import java.util.regex.Pattern;
    import java.util.stream.Stream;
    
    public class HelloWorld {
    
    	public static void main(String[] args) {
    		stream1().forEach(System.out::println);
    		stream2().forEach(System.out::println);
    		stream3().forEach(System.out::println);
    	}
    
    	private static Stream&lt;String&gt; stream1() {
    		return Arrays.stream(&quot;b,l,a&quot;.split(&quot;,&quot;));
    	}
    
    	private static Stream&lt;String&gt; stream2() {
    		return Stream.of(&quot;b,l,a&quot;.split(&quot;,&quot;));
    	}
    
    	private static Stream&lt;String&gt; stream3() {
    		return Pattern.compile(&quot;,&quot;).splitAsStream(&quot;b,l,a&quot;);
    	}
    
    }


  [1]: http://www.tutorialspoint.com/compile_java8_online.php?PID=0Bw_CjBb95KQMYnF0LVNvSnJrUnM

How to split a String into a Stream of Strings?

Currently, If I run `npm install`, it installs the updated version of already installed packages. How can I install the exact version as specified in the `package.json` file?

npm install the exact package version specified in package.json

<p>Currently, If I run <code>npm install</code>, it installs the updated version of already installed packages. How can I install the exact version as specified in the <code>package.json</code> file?</p>


I am trying to run this code but it is giving me following errors:

&gt; Animal.ts(10,13): error TS1056: Accessors are only available when
&gt; targeting ECMAScript 5 and higher. Animal.ts(14,13): error TS1056:
&gt; Accessors are only available when targeting ECMAScript 5 and higher.


    interface IAnimal{
        name : string;
        sayName():string;
    }

    class AnimalImpm implements IAnimal{
        private _name : string = &#39;[Animal]&#39;;
        get name():string{
            return this._name;
        }

        set name(name:string){
            this._name = name;
        }

        constructor(name:string){
            this.name = name;
        }

        sayName():string {
            console.log(`My name is ${this.name}`);
            return &quot;Hello&quot;;
        }
    }


Accessors are only available when targeting ECMAScript 5 and higher

I have the language settings in the context as like below 

    class LanguageProvider extends Component {
      static childContextTypes = {
        langConfig: PropTypes.object,
      };
    
      getChildContext() {
        return { langConfig: &#39;en&#39; };
      }
    
      render() {
        return this.props.children;
      }
    }
    
    export default LanguageProvider;

My application code will be something like below 

    &lt;LanguageProvider&gt;
      &lt;App&gt;
        &lt;MyPage /&gt;
      &lt;/App&gt;
    &lt;/LanguageProvider&gt;
My Page is having a component to switch the language  

    &lt;MyPage&gt;
      &lt;LanguageSwitcher/&gt;
    &lt;/MyPage&gt;
    
    
`LanguageSwitcher`  in this `MyPage` need to update the context to change the language into &#39;jp&#39;  as below 

    class LanguageSwitcher extends Component {
      static contextTypes = {
        langConfig: PropTypes.object,
      };
    
      updateLanguage() {
        //Here I need to update the langConfig to &#39;jp&#39; 
      }
    
      render() {
        return &lt;button onClick={this.updateLanguage}&gt;Change Language&lt;/button&gt;;
      }
    }
    
    export default LanguageSwitcher;

How can I update the context from inside the LanguageSwitcher component ?


How to update React Context from inside a child component?

I have tried to copy the objects as text, but it show just [object object]. Before this I had tried with **copy** commend it was success but not now.Is that chrome issue?
&lt;br&gt;&lt;br&gt;
**What I tried?**
Just Right click on the object and store as global variable from chrome console window, then next just used copy(temp6) command and tried to paste in notepad++.
&lt;br&gt;&lt;br&gt;&lt;br&gt;
[![enter image description here][1]][1] 


  [1]: https://i.stack.imgur.com/bVcmc.png

How to copy the objects from chrome console window?

When I study electron, I found 2 ways of getting BrowserWindow object.

    const {BrowserWindow} = require(&#39;electron&#39;)
and

    const electron = require(&#39;electron&#39;)
    const BrowserWindow = electron.BrowserWindow

What is the difference between `const` and `const {}` in JavaScript?

I can&#39;t understand why the `const {}` can work. Do I miss anything important about JS?


What is the difference between const and const {} in JavaScript

We have a pattern for resolving promises in our Angular app that has served us well up until Angular 1.6.0:

        resource.get().$promise
            .then(function (response) {
            // do something with the response
            }, function (error) {
                // pass the error the the error service
                return errorService.handleError(error);
            });

And here is how we are triggering the error in Karma:

        resourceMock.get = function () {
            var deferred = $q.defer();
            deferred.reject(error);
            return { $promise: deferred.promise };
        };

Now, with the update to 1.6.0, Angular is suddenly complaining in our unit tests (in Karma) for rejected promises with a &quot;Possibly unhandled rejection&quot; error. But we are handling the rejection in the second function that calls our error service.

What exactly is Angular looking for here? How does it want us to &quot;handle&quot; the rejection? 

Angular 1.6.0: &quot;Possibly unhandled rejection&quot; error

Is there a way to check the specific version of `angular-cli` that&#39;s installed globally on my machine? I&#39;m in a Windows environment.
`*npm -v* and *node -v*` only gives me the version of npm and node respectively, and I can&#39;t seem to find any commands with *ng*.

I&#39;m trying to run a project that I&#39;m working on, and it ran on an older version of angular-cli using npm. However, after installing other demo projects, my main project doesn&#39;t work anymore without uninstalling and reinstalling `angular-cli` at the specific version.

Checking version of angular-cli that&#39;s installed?

I installed a package with `yarn add --dev`, run its setup process and during it, the package installed several other packages and added those to `package.json` (in `devDependencies`), I assume with **npm**. Great, but now my `yarn.lock` is out of sync.

What is the correct, non-manual way of syncing `yarn.lock` to the current state of `package.json`?

Edit: `yarn check` shows the missing packages as:

    error Lockfile does not contain pattern: &lt;package&gt;@&lt;version&gt;

But it doesn&#39;t add them.

How to sync `yarn.lock` with `package.json`?

By using `require(./filename)` I can include and execute the code inside *filename* without any export defined inside *filename* itself.

What is the equivalent in ES6 using `import` ?

Thanks

ES6 import equivalent of require() without exports

I was recently going through the version of node in my ubuntu 16.04 when `node -v` command was used it shows me version 6.9.1 but when `nodejs -v` it shows 6.9.2 previously before using this commands `npm update` command was used.

Now what&#39;s these difference in `node -v` and `nodejs -v`? and how to update to the latest LTS version of node/nodejs?    

updating nodejs on ubuntu 16.04

I have been building a polling application. People are able to create their polls and get data regarding the question(s) they ask. I would like to add the functionality to let the users download the results in the form of a PDF.

For example I have two components which are responsible for grabbing the question and data.

    &lt;QuestionBox /&gt;
    &lt;ViewCharts /&gt;

I&#39;m attempting to output both components into a PDF file. The user can then download this PFD file. I have found a few packages that permit the rendering of a PDF inside a component. However I failed to find one that can generate PDF from an input stream consisting of a virtual DOM. If I want to achieve this from scratch what approach should I follow ? 



Generating a PDF file from React Components

I&#39;m testing my GraphQL api using Jest.

I&#39;m using a separate test suit for each query/mutation

I have 2 tests (each one in a separate test suit) where I mock one function (namely, Meteor&#39;s `callMethod`) that is used in mutations.


      it(&#39;should throw error if email not found&#39;, async () =&gt; {
        callMethod
          .mockReturnValue(new Error(&#39;User not found [403]&#39;))
          .mockName(&#39;callMethod&#39;);
    
        const query = FORGOT_PASSWORD_MUTATION;
        const params = { email: &#39;user@example.com&#39; };
    
        const result = await simulateQuery({ query, params });
    
        console.log(result);
    
        // test logic
        expect(callMethod).toBeCalledWith({}, &#39;forgotPassword&#39;, {
          email: &#39;user@example.com&#39;,
        });
    
        // test resolvers
      });

When I `console.log(result)` I get       

    { data: { forgotPassword: true } }

This behaviour is not what I want because in `.mockReturnValue` I throw an Error and therefore expect `result` to have an error object

Before this test, however, another is ran

     it(&#39;should throw an error if wrong credentials were provided&#39;, async () =&gt; {
        callMethod
          .mockReturnValue(new Error(&#39;cannot login&#39;))
          .mockName(&#39;callMethod&#39;);

And it works fine, the error is thrown

I guess the problem is that mock doesn&#39;t get reset after the test finishes.
In my `jest.conf.js` I have   `clearMocks: true`


Each test suit is in a separate file, and I mock functions before tests like this:

    import simulateQuery from &#39;../../../helpers/simulate-query&#39;;
    
    import callMethod from &#39;../../../../imports/api/users/functions/auth/helpers/call-accounts-method&#39;;
    
    import LOGIN_WITH_PASSWORD_MUTATION from &#39;./mutations/login-with-password&#39;;
    
    jest.mock(
      &#39;../../../../imports/api/users/functions/auth/helpers/call-accounts-method&#39;
    );
    
    describe(&#39;loginWithPassword mutation&#39;, function() {
    ...



**UPDATE**

When I substituted `.mockReturnValue` with `.mockImplementation` everything worked out as expected:

    callMethod.mockImplementation(() =&gt; {
      throw new Error(&#39;User not found&#39;);
    });

But that doesn&#39;t explain why in another test `.mockReturnValue` works fine...

How to properly make mock throw an error in Jest?

Is there any way to change or reset the global npm registry.

Appreciate your assistance. 

How to reset the npm registry in global npm config

In order to see all the versions of a node module [webpack], I have executed below command in windows command prompt

    npm view webpack versions


This command only displays first 100 versions and later displays &quot;331 more&quot; text.

How will I be able to list all versions?

How to list all versions of an npm module?

What am I doing wrong when setting up my packages ?  Is there any way to speed this up ?

* `packages.json :`

        {
        &quot;name&quot;: &quot;testing node&quot;,
        &quot;version&quot;: &quot;0.0.0&quot;,
        &quot;description&quot;: &quot;&quot;,
        &quot;main&quot;: &quot;app.config.js&quot;,
        &quot;dependencies&quot;: {
            &quot;babel-core&quot;: &quot;^6.17.0&quot;,
            &quot;babel-loader&quot;: &quot;^6.2.0&quot;,
            &quot;babel-plugin-add-module-exports&quot;: &quot;^0.1.2&quot;,
            &quot;babel-plugin-react-html-attrs&quot;: &quot;^2.0.0&quot;,
            &quot;babel-plugin-transform-class-properties&quot;: &quot;^6.3.13&quot;,
            &quot;babel-plugin-transform-decorators-legacy&quot;: &quot;^1.3.4&quot;,
            &quot;babel-preset-es2015&quot;: &quot;^6.3.13&quot;,
            &quot;babel-preset-react&quot;: &quot;^6.3.13&quot;,
            &quot;babel-preset-stage-0&quot;: &quot;^6.3.13&quot;,
            &quot;react&quot;: &quot;^0.14.6&quot;,
            &quot;react-dom&quot;: &quot;^0.14.6&quot;,
            &quot;webpack&quot;: &quot;^1.12.9&quot;,
            &quot;webpack-dev-server&quot;: &quot;^1.14.1&quot;,
            &quot;mysql&quot;: &quot;*&quot;
        },
        &quot;devDependencies&quot;: {},
        &quot;scripts&quot;: {
            &quot;dev&quot;: &quot;webpack-dev-server --content-base src --inline --hot&quot;,
            &quot;test&quot;: &quot;echo \&quot;Error: no test specified\&quot; &amp;&amp; exit 1&quot;
        },
        &quot;author&quot;: &quot;&quot;,
        &quot;license&quot;: &quot;ISC&quot;
        }

When inside the folder if I run

    npm install

I get the following which can take hours to fully setup:

![npm install stuck][1]

This is not a general computing or hardware issue. Comparative speeds are below :

* 1. Run `haversine` to calculate all distances on over 1 million records in a non-index mysql table takes significantly less time. (computational)

* 2. Download a full install of Linux (Dual Layer DVD ISO) in significantly less time. (bandwidth)


I suspect there is something wrong with my `packages.json` or the command I am running `npm install`. From the image, it seems there are numerous attempts to retrieve the same file.  Possibly there is a way to force `npm` to retrieve from a more stable mirror ?  Possible the mirror selection it uses by default is wonky ?  Just some suggestions -- I don&#39;t know the specific cause which is why I am asking.

This problem also occurs on my Linode, Digital Ocean, and VULTR boxes -- so I suspect it is something specific with `npm`, the way I am using (something missing), or my `packages.json`.

  [1]: https://i.stack.imgur.com/YG3Ff.png

Why is &quot;npm install&quot; really slow?

I want to create an angular 2 App with angular cli

I have written in the cmd: 
&gt;   npm install angular-cli -g 

then:
&gt;  ng firstngapp

but it show me an error when I write npm start ! 
[![the error image][1]][1]


[![Files image ][2]][2]

I don&#39;t understand the problem


  [1]: https://i.stack.imgur.com/0afMx.jpg
  [2]: https://i.stack.imgur.com/nP17A.jpg

You seem to not be depending on &quot;@angular/core&quot;. This is an error

***How to encode or decode a string in angular 2 with base64 ???***
My front-end tool is Angular 2. I had a password string, before passing it to API I need to base64 encode. Since in service base64 encoded string will be decoded.

So I am looking for some base64 encode/decode library for Angular2/Typescript and some options.

Thanks!!!

base 64 encode and decode a string in angular (2+)

I created the following file

//npminstall.bat

    npm install
    echo hello


When I run the following command from Windows 10 Command Line (dos) `npminstall.bat`, the `npm install` command fires, but the `echo hello` doesn&#39;t fire.  I tried putting a semi-color after the first line like this `npm install;`, but all that did was give me the help instructions of npm .

How do I get the second line `echo hello` to fire after the `npm install`?

**Additional Notes**

I have found that this also causes the same behaviour:

//npminstall.bat

    webpack
    echo hello


I think it&#39;s because both the `npm install` command and `webpack` command takes time to execute, and during that time it doe ssomething I don&#39;t expect to the second line.

**Followup 2**

//npminstall.bat

    START /WAIT npm install
    echo hello

This seems to almost do what I want to do.  Except the npm install command causes a pop up window, and i have to shut down teh pop up window before it continues execution to echo hello world.  Can I get rid of the popup window?

creating a .bat file with npm install command

I&#39;m trying to learn react, so I have this sample code for the full-stack react voting app, and I am trying to get it to work but after running npm install followed by npm start I receive the following error when I run ` npm start ` can anyone help me with this issue:

    npm ERR! Darwin 16.4.0
    npm ERR! argv &quot;/usr/local/bin/node&quot; &quot;/usr/local/bin/npm&quot; &quot;run&quot; &quot;server&quot;
    npm ERR! node v7.5.0
    npm ERR! npm  v4.3.0
    npm ERR! file sh
    npm ERR! code ELIFECYCLE
    npm ERR! errno ENOENT
    npm ERR! syscall spawn
    npm ERR! voting_app@1.1.0 server: `live-server --public --    
    host=localhost --port=3000 --middleware=./disable-browser-cache.js`
    npm ERR! spawn ENOENT
    npm ERR!
    npm ERR! Failed at the voting_app@1.1.0 server script &#39;live-server --
    public --host=localhost --port=3000 --middleware=./disable-browser- 
    cache.js&#39;.
    npm ERR! Make sure you have the latest version of node.js and npm  
    installed.
    npm ERR! If you do, this is most likely a problem with the voting_app  
    package,
    npm ERR! not with npm itself.
    npm ERR! Tell the author that this fails on your system:
    npm ERR!     live-server --public --host=localhost --port=3000 --  
    middleware=./disable-browser-cache.js
    npm ERR! You can get information on how to open an issue for this  
    project with:
    npm ERR!     npm bugs voting_app
    npm ERR! Or if that isn&#39;t available, you can get their info via:
    npm ERR!     npm owner ls voting_app
    npm ERR! There is likely additional logging output above.

    npm ERR! Please include the following file with any support request:
    npm ERR!     /Users/ItsMeMrLi/.npm/_logs/2017-02-17T22_48_03_581Z-
    debug.log

    npm ERR! Darwin 16.4.0
    npm ERR! argv &quot;/usr/local/bin/node&quot; &quot;/usr/local/bin/npm&quot; &quot;start&quot;
    npm ERR! node v7.5.0
    npm ERR! npm  v4.3.0
    npm ERR! code ELIFECYCLE
    npm ERR! errno 1
    npm ERR! voting_app@1.1.0 start: `npm run server`
    npm ERR! Exit status 1
    npm ERR!
    npm ERR! Failed at the voting_app@1.1.0 start script &#39;npm run server&#39;.
    npm ERR! Make sure you have the latest version of node.js and npm 
    installed.
    npm ERR! If you do, this is most likely a problem with the voting_app    
    package,
    npm ERR! not with npm itself.
    npm ERR! Tell the author that this fails on your system:
    npm ERR!     npm run server

    npm ERR! You can get information on how to open an issue for this   
    project with:
    npm ERR!     npm bugs voting_app
    npm ERR! Or if that isn&#39;t available, you can get their info via:
    npm ERR!     npm owner ls voting_app
    npm ERR! There is likely additional logging output above.

    npm ERR! Please include the following file with any support request:
    npm ERR!     /Users/ItsMeMrLi/.npm/_logs/2017-02-17T22_48_03_655Z-
    debug.log

Here is my package.json:

    {
      &quot;name&quot;: &quot;voting_app&quot;,
      &quot;version&quot;: &quot;1.1.0&quot;,
      &quot;author&quot;: &quot;Fullstack.io&quot;,
      &quot;scripts&quot;: {
        &quot;go&quot;: &quot;open http://localhost:3000; npm run server&quot;,
        &quot;e2e&quot;: &quot;nightwatch&quot;,
        &quot;test&quot;: &quot;./node_modules/.bin/concurrently -k &#39;npm run server&#39; &#39;npm  
    run e2e&#39;&quot;,
        &quot;start&quot;: &quot;npm run server&quot;,
        &quot;server&quot;: &quot;live-server public --host=localhost --port=3000 --  
    middleware=./disable-browser-cache.js&quot;
      },
      &quot;private&quot;: true,
      &quot;devDependencies&quot;: {
      &quot;concurrently&quot;: &quot;2.2.0&quot;,
      &quot;live-server&quot;: &quot;git://github.com/acco/live-server.git&quot;
    },
      &quot;dependencies&quot;: {
      &quot;semantic-ui&quot;: &quot;git://github.com/Semantic-Org/Semantic-
      UI.git#27d58a01793b66318478fbc5b6676804d22d065d&quot;
      }
    }

And finally my log file:

    0 info it worked if it ends with ok
    1 verbose cli [ &#39;/usr/local/bin/node&#39;, &#39;/usr/local/bin/npm&#39;, &#39;start&#39; ]
    2 info using npm@4.3.0
    3 info using node@v7.5.0
    4 verbose run-script [ &#39;prestart&#39;, &#39;start&#39;, &#39;poststart&#39; ]
    5 info lifecycle voting_app@1.1.0~prestart: voting_app@1.1.0
    6 silly lifecycle voting_app@1.1.0~prestart: no script for prestart, continuing
    7 info lifecycle voting_app@1.1.0~start: voting_app@1.1.0
    8 verbose lifecycle voting_app@1.1.0~start: unsafe-perm in lifecycle true
    9 verbose lifecycle voting_app@1.1.0~start: PATH: /usr/local/lib/node_modules/npm/bin/node-gyp-bin:/Users/ItsMeMrLi/Downloads/fullstack-react-code/voting_app/node_modules/.bin:/Library/Frameworks/Python.framework/Versions/3.6/bin:/Users/ItsMeMrLi/.rvm/gems/ruby-2.3.1/bin:/Users/ItsMeMrLi/.rvm/gems/ruby-2.3.1@global/bin:/Users/ItsMeMrLi/.rvm/rubies/ruby-2.3.1/bin:/Users/ItsMeMrLi/.cargo/bin:/usr/local/Cellar/smlnj/110.74/libexec/bin:/usr/local/bin:/Users/ItsMeMrLi/homebrew/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/Applications/Postgres.app/Contents/Versions/latest/bin:/Downloads/geckodriver:/usr/local/bin:/Users/ItsMeMrLi/.rvm/bin
    10 verbose lifecycle voting_app@1.1.0~start: CWD: /Users/ItsMeMrLi/Downloads/fullstack-react-code/voting_app
    11 silly lifecycle voting_app@1.1.0~start: Args: [ &#39;-c&#39;, &#39;npm run server&#39; ]
    12 silly lifecycle voting_app@1.1.0~start: Returned: code: 1  signal: null
    13 info lifecycle voting_app@1.1.0~start: Failed to exec start script
    14 verbose stack Error: voting_app@1.1.0 start: `npm run server`
    14 verbose stack Exit status 1
    14 verbose stack     at EventEmitter.&lt;anonymous&gt; (/usr/local/lib/node_modules/npm/lib/utils/lifecycle.js:279:16)
    14 verbose stack     at emitTwo (events.js:106:13)
    14 verbose stack     at EventEmitter.emit (events.js:192:7)
    14 verbose stack     at ChildProcess.&lt;anonymous&gt; (/usr/local/lib/node_modules/npm/lib/utils/spawn.js:40:14)
    14 verbose stack     at emitTwo (events.js:106:13)
    14 verbose stack     at ChildProcess.emit (events.js:192:7)
    14 verbose stack     at maybeClose (internal/child_process.js:890:16)
    14 verbose stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:226:5)
    15 verbose pkgid voting_app@1.1.0
    16 verbose cwd /Users/ItsMeMrLi/Downloads/fullstack-react-code/voting_app
    17 error Darwin 16.4.0
    18 error argv &quot;/usr/local/bin/node&quot; &quot;/usr/local/bin/npm&quot; &quot;start&quot;
    19 error node v7.5.0
    20 error npm  v4.3.0
    21 error code ELIFECYCLE
    22 error errno 1
    23 error voting_app@1.1.0 start: `npm run server`
    23 error Exit status 1
    24 error Failed at the voting_app@1.1.0 start script &#39;npm run server&#39;.
    24 error Make sure you have the latest version of node.js and npm installed.
    24 error If you do, this is most likely a problem with the voting_app package,
    24 error not with npm itself.
    24 error Tell the author that this fails on your system:
    24 error     npm run server
    24 error You can get information on how to open an issue for this project with:
    24 error     npm bugs voting_app
    24 error Or if that isn&#39;t available, you can get their info via:
    24 error     npm owner ls voting_app
    24 error There is likely additional logging output above.
    25 verbose exit [ 1, true ]


How to solve npm error &quot;npm ERR! code ELIFECYCLE&quot;

What is the difference between `npm install` and `npm run build`? 

I have noticed in my project that sometimes npm starts failing when `npm install` is performed, but, upon running `npm run build`, it works just fine. 

How do the inner workings of these two targets namely `install` and `run build` differ?

Content Type	Original Author	Original Content on Stackoverflow
Question	suheb	View Question on Stackoverflow
Solution 1 - Javascript	Dale Jefferson	View Answer on Stackoverflow
Solution 2 - Javascript	manonthemat	View Answer on Stackoverflow
Solution 3 - Javascript	Vladimir Jovanović	View Answer on Stackoverflow

npm install the exact package version specified in package.json

Javascript Problem Overview

Javascript Solutions

Solution 1 - Javascript

Solution 2 - Javascript

Solution 3 - Javascript

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