Yes. You can create a file `./test/mocha.opts` and in the file you can specify `--no-colors`.

See *mocha.opts* on [Mocha Doc](http://mochajs.org/#mochaopts) for more information.

Mocha recommends `mocha --config=.mocharc.json`.

There are new formats too, like yaml. See some [examples](https://github.com/mochajs/mocha/tree/master/example/config).

---
Old answer:

The default is `./test/mocha.opts`. You can pass a custom path with the `--opts` parameter :  

`mocha --opts ./mocha.opts`

Useful in case you don’t store your tests in `test/` folder, but next to code files, for example.

Any name and extension seems to work, so you can even do `mocha --opts .mocharc` if you want it to go well with `.jshintrc`, `.babelrc` and the like.

In mocha 6+ the `mocha.opts` was changed to `legacy` and the new place to define your configuration is a `.mocharc` file that can have different formats (JSON, YAML, JS) as [described in the docs](https://mochajs.org/#configuring-mocha-nodejs) or a JSON config added to the `package.json` using `mocha` key.

Specifying your own path to mocha config is done using `--config &lt;file&gt;` but mocha uses any `.mocharc.*` file as default in order described in the docs (JS, YAML, YML, JSON) and also automatically uses `mocha` key from `package.json` with lower priority than a given config file.

How do I swap the the first and last elements of an `ArrayList`?
I know how to swap the elements of an array: setting a temporary value to store the first element, letting the first element equal the last element, then letting the last element equal the stored first element.

    int a = values[0];
    int n = values.length;
    values[0] = values[n-1];
    values[n-1] = a;

So for an `ArrayList&lt;String&gt;` would it be like this?

    String a = words.get(0);
    int n = words.size();
    words.get(0) = words.get(n-1);
    words.get(n-1) = a


Arraylist swap elements

While creating a new AWS EC2 instance using the EC2 command line API, I passed some user data to the new instance.

How can I know whether that user data executed or not?



How to check whether my user data passing to EC2 instance is working

I&#39;d like to set some defaults for mocha without having to type them each time. Does mocha look for a config file / dotfile anywhere, as jshint looks for `.jshintrc` and npm looks for `package.json`?

Is there a .mocha file where I can specify defaults such as --no-colors?

<p>I'd like to set some defaults for mocha without having to type them each time. Does mocha look for a config file / dotfile anywhere, as jshint looks for <code>.jshintrc</code> and npm looks for <code>package.json</code>?</p>


Can I install a NPM package from a javascript file running in Node.js?  For example, I&#39;d like to have a script, let&#39;s call it &quot;script.js&quot; that somehow (...using NPM or not...) install a package usually available through NPM.  In this example, I&#39;d like to install &quot;FFI&quot;.  (npm install ffi)  

Can I install a NPM package from javascript running in Node.js?

Ran into this (slightly annoying problem) I&#39;m trying to look up all records in a collection and not show (or show) a specific field (score). This is just an example and not reflective of my actual code, but the problem is always reproducible. The fields I am excluding are very large and I&#39;m merely trying to generate a menu of available records.

Commands like 

        players.find({},{score:1})
        players.find({},{score:0})

Always return every field, instead of triggering the exclude/include in mongodb. Am I worried about nothing, since the template potentially can control what data gets rendered to html? Still feels like the data is transferred to the client side regardless; and shows up in the console.

Meteor - collection.find() always returns all fields

The problem: while using `nvm` to install Node.js I was able to install the version of Node.js I need, but `nvm` does not install `npm` automatically. NPM&#39;s page provides no information about installing it. Being not much of a Windows user myself I am completely at a loss...

Every result in Google seems to use Node.js MSI installer to get that working - which is not an option in my case. So, how do I?

Install npm (Node.js Package Manager) on Windows (w/o using Node.js MSI)

I need to do some parsing of large (5-10 Gb)logfiles in Javascript/Node.js (I&#39;m using Cube).

The logline looks something like:

    10:00:43.343423 I&#39;m a friendly log message. There are 5 cats, and 7 dogs. We are in state &quot;SUCCESS&quot;.

We need to read each line, do some parsing (e.g. strip out `5`, `7` and `SUCCESS`), then pump this data into Cube (https://github.com/square/cube) using their JS client.

Firstly, what is the canonical way in Node to read in a file, line by line?

It seems to be fairly common question online:

* http://www.quora.com/What-is-the-best-way-to-read-a-file-line-by-line-in-node-js
* https://stackoverflow.com/questions/6156501/read-a-file-one-line-at-a-time-in-node-js

A lot of the answers seem to point to a bunch of third-party modules:

* https://github.com/nickewing/line-reader
* https://github.com/jahewson/node-byline
* https://github.com/pkrumins/node-lazy
* https://github.com/Gagle/Node-BufferedReader

However, this seems like a fairly basic task - surely, there&#39;s a simple way within the stdlib to read in a textfile, line-by-line?

Secondly, I then need to process each line (e.g. convert the timestamp into a Date object, and extract useful fields).

What&#39;s the best way to do this, maximising throughput? Is there some way that won&#39;t block on either reading in each line, or on sending it to Cube?

Thirdly - I&#39;m guessing using string splits, and the JS equivalent of contains (IndexOf != -1?) will be a lot faster than regexes? Has anybody had much experience in parsing massive amounts of text data in Node.js?

Cheers,
Victor

Parsing huge logfiles in Node.js - read in line-by-line

How can I transform a node.js buffer into a Readable stream following using the stream2 interface ?

I already found this [answer][1] and the stream-buffers module but this module is based on the stream1 interface.

  [1]: https://stackoverflow.com/questions/13230487/converting-a-buffer-into-a-readablestream-in-nodejs

How to wrap a buffer as a stream2 Readable stream?

I am setting up my first `Node.js` server on a `cloud Linux node` and I am fairly new to the details of `Linux admin`. (BTW I am not trying to use Apache at the same time.) 

Everything is installed correctly, but I found that unless I use the `root login`, I am not able to listen on `port 80` with node. However I would rather not run it as root for security reason. 

What is the best practice to:

1. Set good permissions / user for node so that it is secure / sandboxed?
2. Allow port 80 to be used within these constraints.
3. Start up node and run it automatically.
4. Handle log information sent to console.
5. Any other general maintenance and security concerns.

Should I be forwarding port 80 traffic to a different listening port?

Thanks



Best practices when running Node.js with port 80 (Ubuntu / Linode)

My question is a little bit common, but it is linked with Gradle too.

**Why we need compile and runtime configuration?**

When I compile something I need artifacts to convert my java classes in bytecode so I need compile configuration, but why is needed runtime configuration do I need something else to run my application in JVM?

Sorry if it sounds stupid, but I don&#39;t understand.

Difference between compile and runtime configurations in Gradle

Where does the name &#39;default&#39; come from when launching a vagrant box?

    $ vagrant up
    Bringing machine &#39;default&#39; up with &#39;virtualbox&#39; provider...

Is there a way to set this?

How to change Vagrant &#39;default&#39; machine name?

I have a Node.js/Express.js app running on my server that only works on port 3000 and I&#39;m trying to figure out why. Here&#39;s what I&#39;ve found:

 - Without specifying a port (`app.listen()`), the app runs but the web page does not load.
 - On port 3001 (`app.listen(3001)`) or any other port that is not in use, the app runs but the web page does not load. 
 - On port 2999, the app throws an error because something else is using that port.
 - On port 3000, the app runs and the web page loads fine.

I know that Express apps default to port 3000. But strangely, my app only runs when I explicitly make it run on port 3000 (`app.listen(3000)`).

I found this on line 220 of `/usr/bin/express`:

    app.set(\&#39;port\&#39;, process.env.PORT || 3000);

Which is doing as previously stated: setting the port to what is specified or to 3000 if nothing is specified.

How could I make my app work on a different port such as 8080 or 3001?

Thanks!

**Edit: Code Sample (Very Simple Node/Express App)**

    var express = require(&quot;express&quot;);
    var app = express();

    app.get(&#39;/&#39;, function(req, res){
    	res.send(&#39;hello world&#39;); 
    });

    // Only works on 3000 regardless of what I set environment port to or how I set [value] in app.set(&#39;port&#39;, [value]).
    app.listen(3000);

Node.js/Express.js App Only Works on Port 3000

My scala application will be packaged into a jar. When I run my app, it needs to read an additional config file stored externally to my app jar. I am looking for functionality similar to the Typesafe Config library but other solutions are welcome too ! Is there a way to do something like below:

    val hdfsConfig = ConfigFactory.load(&quot;my_path/hdfs.conf&quot;)

Typesafe config: Load additional config from path external to packaged scala application

I&#39;m trying to create a .ssh/config file for multiple SSH accounts (specifically for github.com).  I&#39;ve tried several tutorials and github help walk-throughs but nothing seems to work.

I created a `id_rsa_test` and `id_rsa_test.pub`.  I uploaded `id_rsa_test.pub` to github.

I then created a `~/.ssh/config` file with the following:


    # github account
    Host github.com-test github.com
    	Hostname github.com
    	User git 
    	IdentifyFile ~/.ssh/id_rsa_test

and


    # github account
    Host github.com-test github.com
    	Hostname github.com
    	User git 
    	IdentifyFile ~/.ssh/id_rsa_test.pub

I then try several commands.  i.e.:

    git clone git@github-test:username/my_project.git

    git push

...everytime I get the following error:


    /home/username/.ssh/config: line 5: Bad configuration option: IdentifyFile
    /home/username/.ssh/config: terminating, 1 bad configuration options
    fatal: The remote end hung up unexpectedly

Any suggestions?


GitHub SSH Config: &quot;Bad configuration option: IdentifyFile&quot;

I am new to `Capistrano`and I saw there is shared folder and also option `:linked_files`. I think shared folder is used to keep files between releases. But my question is, how do files end up being in the shared folder?

Also, if I want to symlink another directory to the current directory e.g. static folder at some path, how do I put it at the `linked_dirs` ?

Lastly how to set `chmod 755` to linked_files and linked_dirs.

Thank you.

Capistrano - How to put files in the shared folder?

I don&#39;t care if it&#39;s `JSON`, `pickle`, `YAML`, or whatever.

All other implementations I have seen are not forwards compatible, so if I have a config file, add a new key in the code, then load that config file, it&#39;ll just crash.

Are there any simple way to do this?

Python: How would you save a simple settings/config file?

I need to commit my changes to repository, but on this laptop (svn configurations) I&#39;m not default user.

How can I set my login and password as default in svn config?

OS_X 10.9
svn, version 1.7.10 (r1485443)


How change default SVN username and password to commit changes?

I&#39;m submitting a network request in a test case, but this sometimes takes longer than 2 seconds (the default timeout).

How do I increase the timeout for a single test case?

How to increase timeout for a single test case in mocha

I am writing test cases for my Node.js application using Mocha. The test cases need an API key as an extra input option or parameter. The API key is private, so I don&#39;t want to include it directly in the test files as everyone then can see it on GitHub. I know there are some options available for Mocha at:

http://mochajs.org/#usage

But is it possible to include some parameters to let testers specify their own API key for the test in the commandline? Such as:

    ./node_modules/mocha/bin/mocha test/*.js --key YOUR_KEY

Mocha tests with extra options or parameters

In my node application I&#39;m using mocha to test my code. While calling many asynchronous functions using mocha, I&#39;m getting timeout error (`Error: timeout of 2000ms exceeded.`). How can I resolve this?
  

    var module = require(&#39;../lib/myModule&#39;);
    var should = require(&#39;chai&#39;).should();
    
    describe(&#39;Testing Module&#39;, function() {
    
        it(&#39;Save Data&#39;, function(done) {
    
            this.timeout(15000);
    
            var data = {
                a: &#39;aa&#39;,
                b: &#39;bb&#39;
            };
    
            module.save(data, function(err, res) {
                should.not.exist(err);
                done();
            });
    
        });
    
    
        it(&#39;Get Data By Id&#39;, function(done) {
    
            var id = &quot;28ca9&quot;;
    
            module.get(id, function(err, res) {
    
                console.log(res);
                should.not.exist(err);
                done();
            });
    
        });
    
    });

In mocha testing while calling asynchronous function how to avoid the timeout Error: timeout of 2000ms exceeded

I am using Mocha for testing my NodeJS application. I am not able to figure out how to use its code coverage feature. I tried googling it but did not find any proper tutorial. Please help.

Code coverage with Mocha

How do I setup Karma to run my backend unit tests (written with Mocha)? If I add my backend test script to the `files = []`, it fails stating that `require` is undefined.

How to test nodejs backend code with Karma (testacular)

I have seen a few people that have git repos with their dot files. I&#39;m wondering if they just 

    cd ~/
    git init
    git add .vimrc
    // etc

? And then that&#39;s how they keep it up to date? Or do they probably make copies and sync them?


What strategy do you guys recommend or use? Mostly don&#39;t wanna commit and push my entire ~/

Thanks


Adding your .vim ~/.vimrc to github (aka dot files)

I recently upgraded to Textmate 2 and now my dotfiles are not showing up in the file browser. Obviously, this is important when working with stuff like `.htaccess` files.

Is there a way to enable this feature?

How can I show dotfiles in Textmate 2?

I&#39;m confused about what&#39;s the correct way to ignore the contents of a directory in git.

Assume I have the following directory structure:

    my_project  
         |--www  
             |--1.txt  
             |--2.txt
         |--.gitignore

 
What&#39;s the difference between putting this:

    www

And this?

    www/*

The reason I&#39;m asking this question is: In git, if a directory is empty, git won&#39;t include such empty directory in repository. So I was trying the solution that is add an extra .gitkeep file under the directory so that it won&#39;t be empty. When I was trying that solution, if in the .gitignore file, I write like below:

    www
    !*.gitkeep

It doesn&#39;t work(My intention is to ignore all contents under www but keep the directory). But if I try the following:

    www/* 
    !*.gitkeep

Then it works! So I think it must has some differences between the two approaches.

What&#39;s the difference between Git ignoring directory and directory/*?

I&#39;m in the process of cleaning up all my config files in an attempt to make them as readable as possible. I&#39;ve been looking for a style guide on the use of quotes while exporting paths in, for example, a `~/.bashrc` file:

    export PATH=&quot;/users/me/path:$PATH&quot;

vs 

    export PATH=/users/me/path:$PATH

The Google [shell style](https://google.github.io/styleguide/shellguide.html#s5.7-quoting) guide suggests avoiding quotes for path names. In contrast, a lot of the popular dotfiles repos (such as Zach Holman&#39;s [here](https://github.com/holman/dotfiles/blob/75183cecb9d7c7c4a7cf5e9301cefffd2abf8ef7/system/_path.zsh)) use quotes. Are there any situations when it is an advantage to use quotes in the path?

Should I use quotes in environment path names?

When I have hidden files, like *dotfiles* or a `.git` directory: 
How can I list those files and directories in Powershell?

Neither `Get-ChildItem`, `dir` nor `ls` seem to show them.

Content Type	Original Author	Original Content on Stackoverflow
Question	mcandre	View Question on Stackoverflow
Solution 1 - node.js	zs2020	View Answer on Stackoverflow
Solution 2 - node.js	gabssnake	View Answer on Stackoverflow
Solution 3 - node.js	crackmigg	View Answer on Stackoverflow

Is there a .mocha file where I can specify defaults such as --no-colors?

node.js Problem Overview

node.js Solutions

Solution 1 - node.js

Solution 2 - node.js

Solution 3 - node.js

How to check whether my user data passing to EC2 instance is working

Arraylist swap elements

Attributions