The `i` flag is an alias for `install`, so

```bash
npm i package
```

is the same as

```bash
npm install package
```

From the documentation:

```
npm install (with no args, in package dir)
npm install [&lt;@scope&gt;/]&lt;name&gt;
npm install [&lt;@scope&gt;/]&lt;name&gt;@&lt;tag&gt;
npm install [&lt;@scope&gt;/]&lt;name&gt;@&lt;version&gt;
npm install [&lt;@scope&gt;/]&lt;name&gt;@&lt;version range&gt;
npm install &lt;alias&gt;@npm:&lt;name&gt;
npm install &lt;git-host&gt;:&lt;git-user&gt;/&lt;repo-name&gt;
npm install &lt;git repo url&gt;
npm install &lt;tarball file&gt;
npm install &lt;tarball url&gt;
npm install &lt;folder&gt;

aliases: npm i, npm add
common options: [-P|--save-prod|-D|--save-dev|-O|--save-optional|--save-peer] [-E|--save-exact] [-B|--save-bundle] [--no-save] [--dry-run]
```

The `i` command is an alias for `npm-install` alias, which is mentioned [in the docs](https://docs.npmjs.com/cli/install).

You can use it with all `npm-install` flags. For example below I will install `Angular` and `live-server` using the `npm i` command:

```bash
npm i angular2@2.0.0-alpha.45 -E
npm i live-server -D
```

I&#39;m using SBT (within IntelliJ IDEA) to build a simple Scala project.

I would like to know what is the **simplest way** to build an **Uber JAR** file (aka Fat JAR, Super JAR).

I&#39;m currently using SBT but when I&#39;m submiting my JAR file to [Apache Spark][1] I get the following error:

&gt; Exception in thread &quot;main&quot; java.lang.SecurityException: Invalid
&gt; signature file digest for Manifest main attributes

Or this error during compilation time:

&gt; java.lang.RuntimeException: deduplicate: different file contents found
&gt; in the following:&lt;br&gt;
&gt; PATH\DEPENDENCY.jar:META-INF/DEPENDENCIES&lt;br&gt;
&gt; PATH\DEPENDENCY.jar:META-INF/MANIFEST.MF

It [looks like][2] it is because some of my dependencies include signature files (META-INF) which needs to be removed in the final Uber JAR file.

I tried to use the [sbt-assembly][3] plugin like that:

/project/assembly.sbt

    addSbtPlugin(&quot;com.eed3si9n&quot; % &quot;sbt-assembly&quot; % &quot;0.12.0&quot;)

/project/plugins.sbt

    logLevel := Level.Warn

/build.sbt

    lazy val commonSettings = Seq(
      name := &quot;Spark-Test&quot;
      version := &quot;1.0&quot;
      scalaVersion := &quot;2.11.4&quot;
    )
    
    lazy val app = (project in file(&quot;app&quot;)).
      settings(commonSettings: _*).
      settings(
        libraryDependencies ++= Seq(
          &quot;org.apache.spark&quot; %% &quot;spark-core&quot; % &quot;1.2.0&quot;,
          &quot;org.apache.spark&quot; %% &quot;spark-streaming&quot; % &quot;1.2.0&quot;,
          &quot;org.apache.spark&quot; % &quot;spark-streaming-twitter_2.10&quot; % &quot;1.2.0&quot;
        )
      )

When I click &quot;*Build Artifact...*&quot; in IntelliJ IDEA I get a JAR file. But I end up with the same error...

I&#39;m new to SBT and not very experimented with IntelliJ IDE.

Thanks.


  [1]: https://spark.apache.org/
  [2]: https://groups.google.com/forum/#!topic/spark-developers/1H6bfiCeTaY
  [3]: https://github.com/sbt/sbt-assembly

How to build an Uber JAR (Fat JAR) using SBT within IntelliJ IDEA?

I&#39;m trying to get some json data using OkHttp and can&#39;t figure out why when i try logging the `response.body().toString()` what i get is `Results:﹕ com.squareup.okhttp.Call$RealResponseBody@41c16aa8`


    try {
            URL url = new URL(BaseUrl);
            OkHttpClient client = new OkHttpClient();
            Request request = new Request.Builder()
                    .url(url)
                    .header(/****/)
                    .build();

            Call call = client.newCall(request);
            Response response = call.execute();

            **//for some reason this successfully prints out the response**
            System.out.println(&quot;YEAH: &quot; + response.body().string());

            if(!response.isSuccessful()) {
                Log.i(&quot;Response code&quot;, &quot; &quot; + response.code());
            }

            Log.i(&quot;Response code&quot;, response.code() + &quot; &quot;);
            String results = response.body().toString();

            Log.i(&quot;OkHTTP Results: &quot;, results);

![Log][1]


  [1]: http://i.stack.imgur.com/xS2M3.png


I don&#39;t know what i&#39;m doing wrong here. How do i get the response string?

Can&#39;t get OkHttp&#39;s response.body.toString() to return a string

What does the `i` command do in the npm CLI?

I saw it used like this:

```bash
npm i package
```

What does the `npm i` command do?

What does the <code>i</code> command do in the npm CLI?
I saw it used like this:
<pre><code class="hljs language-css">npm i package
</code></pre>

I have a payment system using node.js and braintree, when the payment is successful I want to send the user to the back end. My back end is setup elsewhere. 

I have tried 

    res.writeHead(301,
      {Location: &#39;http://app.example.io&#39;}
    );
    res.end();

So window.location is obviously not available. I cant think of any ways to redirect a user?

In express how do I redirect a user to an external url?

A new stable release of Node.js (0.12) has landed recently with an upgraded Google&#39;s v8 JavaScript engine, *v3.28.73*.

## What ECMAScript 6 features are currently present in Node.js, without using the `--harmony` flag?

I have checked several sites claiming to list the ES 6 features but all of them seem out of date - most prominently, [this table](http://kangax.github.io/compat-table/es6/#node) (**Update:** *now updated with current Node.js status as of 0.12*), because several of the features are listed as requiring the `--harmony` flag while I found some of them being enabled by default (Maps, Sets, Symbols, to name a few). **Update**: [Node specific tables][1] have since been made available

Also, trying to google this information purely for the v8 engine gives too up-to-date information - current v8 release is *4.2.\**, which is quite ahead of what Node.js uses.

My hopes are that this question (and its answers) will become a comprehensive summary on what ES 6 features are now available to Node.js developers.

## ES 6 features enabled in Node.js 0.12 I currently know of:

- Maps, Sets / WeakMaps, WeakSets
- Symbols
- Object.observe
- Promises
- Number
  - .isInteger
  - .isSafeInteger
  - .isNaN
  - .EPSILON
  - .MIN_SAFE_INTEGER
  - .MAX_SAFE_INTEGER
- Math
  - .clz32
  - .imul
  - .sign
  - .log10
  - .log2
  - .log1p
  - .expm1
  - .cosh
  - .sinh
  - .tanh
  - .acosh
  - .asinh
  - .atanh
  - .trunc
  - .fround
  - .cbrt
  - .hypot


  [1]: http://node.green/

ECMAScript 6 features available in Node.js 0.12

I am trying to define some endpoints and do a test using `nodejs`. In `server.js` I have:

    var express = require(&#39;express&#39;);
    var func1 = require(&#39;./func1.js&#39;);
    var port = 8080;
    var server = express();
    
    server.configure(function(){
      server.use(express.bodyParser());
    });

    server.post(&#39;/testend/&#39;, func1.testend);

and in `func1.js`:

        var testend = function(req, res) {
               serialPort.write(&quot;1&quot;, function(err, results) {
               serialPort.write(&quot;2&quot; + &quot;\n&quot;, function(err, results) {
               });
          });
       });
        exports.testend = testend;

Now in `test.js` I am trying to use this endpoint:

    var should = require(&#39;should&#39;);
    var assert = require(&#39;assert&#39;);
    var request = require(&#39;supertest&#39;);
    var http = require(&#39;http&#39;);
    var app = require(&#39;./../server.js&#39;);
    var port = 8080;

    describe(&#39;Account&#39;, function() {
            var url = &quot;http://localhost:&quot; + port.toString();
            it(&#39;test starts&#39;, function(done) {
                    request(url).post(&#39;/testend/&#39;)
                    // end handles the response
                    .end(function(err, res) {
                            if (err) {
                                    throw err;
                            }
                            res.body.error.should.type(&#39;string&#39;);
                            done();
                    });
            });
    });

But when I run `node test.js` I am getting this error:

&lt;pre&gt;
describe(&#39;Account&#39;, function() {
^

ReferenceError: describe is not defined
    at Object.&lt;anonymous&gt; (/test/test.js:9:1)
    at Module._compile (module.js:456:26)
    at Object.Module._extensions..js (module.js:474:10)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:312:12)
    at Function.Module.runMain (module.js:497:10)
    at startup (node.js:119:16)
    at node.js:906:3
&lt;/pre&gt;

How can I fix the issue?


ReferenceError: describe is not defined NodeJs

I would like to use google web starter kit. I installed node.js v0.12.0, `node-sass` &amp; `gulp`.

And then ran:

    $ sudo npm install

When I typed `gulp serve` then got this error:

    Using gulpfile ~/web-starter-kit/gulpfile.js Starting &#39;styles&#39;... &#39;styles&#39; errored after 93 ms 
    Error: `libsass` bindings not found. Try reinstalling `node-sass`? at getBinding

I reinstalled node and gulp but this doesn&#39;t help.

What should I do next?

Try reinstalling `node-sass` on node 0.12?

I have a simple node module which connects to a database and has several functions to receive data, for example this function:
****
**dbConnection.js:**

    import mysql from &#39;mysql&#39;;

    const connection = mysql.createConnection({
      host: &#39;localhost&#39;,
      user: &#39;user&#39;,
      password: &#39;password&#39;,
      database: &#39;db&#39;
    });

    export default {
      getUsers(callback) {
        connection.connect(() =&gt; {
          connection.query(&#39;SELECT * FROM Users&#39;, (err, result) =&gt; {
  	        if (!err){
    	      callback(result);
            }
    	  });
        });
      }
    };
The module would be called this way from a different node module:
****
**app.js:**

    import dbCon from &#39;./dbConnection.js&#39;;

    dbCon.getUsers(console.log);

I would like to use promises instead of callbacks in order to return the data.
So far I&#39;ve read about nested promises in the following thread: https://stackoverflow.com/questions/15913448/writing-clean-code-with-nested-promises, but I couldn&#39;t find any solution that is simple enough for this use case.
What would be the correct way to return `result` using a promise?

Replacing callbacks with promises in Node.js

Is there any way to rename an NPM module that has already been published? I want to change the name of my module to more accurately match the API it exposes but would not like to leave people who have already installed it in the lurch.

Renaming a published NPM module

I have a problem: nodemon does not run off the npm script (e.g. `npm start`),&lt;br&gt;
but if nodemon is called on the command line outside the npm script, nodemon runs as normal.&lt;br&gt;

    $ nodemon server.js
    14 Feb 22:59:51 - [nodemon] v1.3.7
    14 Feb 22:59:51 - [nodemon] to restart at any time, enter `rs`
    14 Feb 22:59:51 - [nodemon] watching: *.*
    14 Feb 22:59:51 - [nodemon] starting `node server.js`

How it is called in npm script:

    package.json
    
    {
    ...
      &quot;scripts&quot;: {
        &quot;start&quot;: &quot;nodemon server.js&quot;
      }
    }
When npm start script is run:

    $ npm start
    &gt; aaa@0.0.1 start /home/akul/Documents/aaa
    &gt; nodemon server.js
    
    sh: 1: nodemon: not found
    
    npm ERR! Linux 3.13.0-45-generic
    npm ERR! argv &quot;node&quot; &quot;/home/akul/npm-global/bin/npm&quot; &quot;start&quot;
    npm ERR! node v0.12.0
    npm ERR! npm  v2.5.0
    npm ERR! code ELIFECYCLE
    npm ERR! aaa@0.0.1 start: `nodemon server.js`
    npm ERR! Exit status 127
    npm ERR! 
    npm ERR! Failed at the aaa@0.0.1 start script &#39;nodemon server.js&#39;.
    npm ERR! This is most likely a problem with the aaa package,
    npm ERR! not with npm itself.
    npm ERR! Tell the author that this fails on your system:
    npm ERR!     nodemon server.js
    npm ERR! You can get their info via:
    npm ERR!     npm owner ls aaa
    npm ERR! There is likely additional logging output above.
    
    npm ERR! Please include the following file with any support request:
    npm ERR!     /home/akul/Documents/aaa/npm-debug.log

I&#39;ve been looking for a solution, but have not found one.

nodemon not found in npm

How do I list a private Github repo as a `&quot;dependency&quot;` in `package.json`? I tried [npm&#39;s Github URLs][1] syntaxes like `ryanve/example`, but doing `npm install` in the package folder gives &quot;could not install&quot; errors for the private dependencies. Is there a special syntax (or some other mechanism) for depending on private repos?

  [1]: https://docs.npmjs.com/files/package.json#github-urls




How to use private Github repo as npm dependency

I&#39;m new to nodejs and npm. I&#39;m trying to install log4js and this is the command for the install:

    npm install log4js

I&#39;m running this from Windows Command Line and I after a while of a marker spinning I get the following error:

    npm ERR! Windows_NT 6.3.9600
    npm ERR! argv &quot;C:\\Program Files\\nodejs\\\\node.exe&quot; &quot;C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js&quot; &quot;install&quot; &quot;log4js&quot;
    npm ERR! node v0.12.0
    npm ERR! npm  v2.5.1
    npm ERR! code SELF_SIGNED_CERT_IN_CHAIN
    
    npm ERR! self signed certificate in certificate chain
    npm ERR!
    npm ERR! If you need help, you may report this error at:
    npm ERR!     &lt;http://github.com/npm/npm/issues&gt;
    
    npm ERR! Please include the following file with any support request:
    npm ERR!     C:\srv\npm-debug.log

I tried doing `npm config set ca=&quot;&quot;` like suggested here: http://blog.npmjs.org/post/78085451721/npms-self-signed-certificate-is-no-more but I&#39;m still getting this error.

How can I solve this and install NPMs ?

nodejs &quot;npm ERR! code SELF_SIGNED_CERT_IN_CHAIN&quot;

I&#39;m using a CLI tool to build hybrid mobile apps which has a cool upload feature so I can test the app on a device without going through the app store (it&#39;s ionic-cli). However, in my company like so many other companies TLS requests are re-signed with the company&#39;s own custom CA certificate which I have on my machine in the keychain (OS X). However, nodejs does not use the keychain to get its list of CA&#39;s to trust. I don&#39;t control the ionic-cli app so I can&#39;t simply pass in a { ca: } property to the https module. I could also see this being a problem for any node app which I do not control. Is it possible to tell nodejs to trust a CA?

I wasn&#39;t sure if this belonged in Information Security or any of the other exchanges...

How to add custom certificate authority (CA) to nodejs

I need a simple and free way to resize images and do batch jobs, if necessary. Free image manipulation software has been trickier to use than it should be. 

How to resize images using terminal on Mac OSX?

How to turn off word wrap in iTerm2? Is there a specific command to do so or in the preferences? I am trying to avoid having the text run down to the next line. I would rather scroll side to side.

How to turn off word wrap in iTerm2?

I know that I can jump to the beginning and end of a line inside the OS X terminal with &lt;kbd&gt;Ctrl&lt;/kbd&gt;+&lt;kbd&gt;A&lt;/kbd&gt; and &lt;kbd&gt;Ctrl&lt;/kbd&gt; + &lt;kbd&gt;E&lt;/kbd&gt;. But I&#39;m so used to jumping with &lt;kbd&gt;Cmd&lt;/kbd&gt;+&lt;kbd&gt;Right&lt;/kbd&gt; arrow and &lt;kbd&gt;Cmd&lt;/kbd&gt;+&lt;kbd&gt;Left&lt;/kbd&gt; arrow from my editor, that I would love to use these shortcuts for the terminal too.

I haven&#39;t found a solution with Google, so maybe here someone can help.

**Update**

As in the comments, I tried the solution from https://stackoverflow.com/questions/81272/is-there-any-way-in-the-os-x-terminal-to-move-the-cursor-word-by-word/81299#81299

Unfortunately, the Terminal settings seems to not include &lt;kbd&gt;Cmd&lt;/kbd&gt; as a Modifier Key, as you can see here:

![Modifier Keys of Terminal][1]


  [1]: http://i.stack.imgur.com/nHqff.png

OS X Terminal shortcut: Jump to beginning/end of line

I want to change the default terminal app used by Visual Studio Code for Mac. I am thinking it is part of preferences or settings json, but unsure.

Change default terminal app in Visual Studio Code on Mac

The question says it all.

How can I open VS Code editor from

+ windows cmd
+ linux and mac terminal

e.g. for notepad++ I write

   `&gt; start notepad++ test.txt`

By the way, the editor is awesome (cross-platform)! Thank you Nadella!

You can download it from [microsoft](https://code.visualstudio.com/)

How to call VS Code Editor from terminal / command line

How do I remove the first 5 characters in each line in a text file?  
I have a file like this: 

       4 Alabama
       4 Alaska
       4 Arizona
       4 Arkansas
       4 California
      54 Can
       8 Carolina
       4 Colorado
       4 Connecticut
       8 Dakota
       4 Delaware
      97 Do
       4 Florida
       4 Hampshire
      47 Have
       4 Hawaii



I&#39;d like to remove the number and the space at the beginning of each line in my txt file.  


How do I remove first 5 characters in each line in a text file using vi?

On Windows&amp;nbsp;Vista, I need a script that starts the `activate` (to activate the virtualenv) script in:

    C:\Users\Admin\Desktop\venv\Scripts\

And later, in the virtual environment, starts to the `manage.py runserver` in the folder:

    C:\Users\Admin\Desktop\helloworld\

How should I do? What modules should I use?


A Python script that activates the virtualenv and then runs another Python script?

I&#39;m trying to run this command in Laravel 5.2 but it&#39;s not working:

    php artisan make:auth 

And prompts with these statements:


    [InvalidArgumentException]
      Command &quot;make:auth&quot; is not defined
      Did you mean one of these?  
    
    
          make:test
          make:request
          make:migration
          make:seeder
          make:middleware
          make:controller
          make:provider
          make:policy
          make:event
          make:console
          make:job
          make:listener
          make:model
          make:command

Php artisan make:auth command is not defined

I am using IPVanish for using a proxy while surfing; like:

    sudo openvpn --config /home/ipv/conf/ipvanish-CA-Toronto-tor-a09.ovpn

Now, I have to enter my username, after that my password.
How Can I pass those two params right as one command, so that I just use one command and the username/password are being passed automatically?


OpenVPN on Linux: passing username and password in command line

`flutter doctor` doesn&#39;t work on either Command Prompt or PowerShell window?
I have been trying to install flutter on windows. I have cloned the Flutter SDK as mentioned in the tutorial. I have added git and the flutter to my path. But still  when I try to run the `flutter doctor` the command prompt reply with this:

```cmd 
&#39;where&#39; is not recognized as an internal or external command operable program or batch file.
Error: Unable to find git in your path
```

---

[![enter image description here][1]][1]


  [1]: https://i.stack.imgur.com/db9eb.jpg
check the cmd image you will see exactly the problem

Content Type	Original Author	Original Content on Stackoverflow
Question	krispy	View Question on Stackoverflow
Solution 1 - node.js	MoMoney	View Answer on Stackoverflow
Solution 2 - node.js	Alireza Fattahi	View Answer on Stackoverflow

What does the `npm i` command do?

node.js Problem Overview

node.js Solutions

Solution 1 - node.js

Solution 2 - node.js

Can't get OkHttp's response.body.toString() to return a string

How to build an Uber JAR (Fat JAR) using SBT within IntelliJ IDEA?

Attributions