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Online REPL


Repl.it is application that can be used as repl for many languages, especially when you don't have one for that language installed in OS.
Left panel can be used to run multiline code - this is big advantage over standard repl, in that situation usually you need to create file for it or write it in repl that can be tricky.


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How to simulate slow connection (developer proxy in Node.js)

Update: If you use Chrome then you can use "Throttling" so simulate slow network for all your assets. This should be easier than proxy.


Toggle device modeChoose Network type.Refresh the page




https://developer.chrome.com/devtools/docs/device-mode 



Proxy:



For some time I wanted to use some proxy for development and testing of eg. slow internet connection, but it was hard to find something useful and free. I know there is Charles but buy it to use it at most one in a month is not for me.

I started thinking about Node.js, maybe I can write proxy for me? But fortunately I found one.

https://github.com/nodejitsu/node-http-proxy

With this module I can write really short code to create slow server:


var http = require('http'), httpProxy = require('http-proxy'); httpProxy.createServer(function (req, res, proxy) { var buffer = httpProxy.buffer(req); setTimeout(function () { proxy.proxyRequest(req, res, { host: 'localhost', port: 8080, …

How to use NPM packages from private repositories on bitbucket

Using Node.js you want to use NPM packages for reusable parts of the apps you create, that is a common sense. At the same time not everything makes sense as a public module unfortunately. Right now we are using Bitbucket at work for private repositories but there is a problem. How to use them as NPM modules? We do not want to publish them to the public npmjs.org but still want to have an ability to install them easily.

After googling and experimenting I have found simple solution.
First create new user in your organization with obscure password and give it read access to the repo. It is best to assign really obscure password but do not fool yourself. This is convenient but you must sacrifice security a bit. You should always consider how in your context that would be important.

Change example from below to:
user - username
PASS - password of the user
organization - owner of the project (you can find it in bitbucket url to your project)
project - your project name

"dependencies&…