Ankur Anand ankur-anand

$ git clone https://github.com/google/flatbuffers.git
$ cd flatbuffers
$ cmake -G "Unix Makefiles"
$ make
$ ./flattests # this is quick, and should print "ALL TESTS PASSED"
$ sudo make install #install
$ sudo ldconfig #Configuring a dynamic link library
$ flatc --version #Check if FlatBuffers is installed successfully

Installing V8 on a Mac

Prerequisites

Install Xcode (Avaliable on the Mac App Store)
Install Xcode Command Line Tools (Preferences > Downloads)
Install depot_tools
- git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git
- sudo nano ~/.bash_profile
Add export PATH=/path/to/depot_tools:"$PATH" (it's important that depot_tools comes first here)

Common Options

-#, --progress-bar Make curl display a simple progress bar instead of the more informational standard meter.

-b, --cookie <name=data> Supply cookie with request. If no =, then specifies the cookie file to use (see -c).

-c, --cookie-jar <file name> File to save response cookies to.

The Ultimate Unit Testing Cheat-sheet

For Mocha, Chai and Sinon

using mocha/chai/sinon for node.js unit-tests? check out my utility: mocha-stirrer to easily reuse test components and mock require dependencies

Sinon Chai
Chai
Sinon
Mocha

Promise Error Handling Hooks

Problem

A common desire in web programming is to log any uncaught exceptions back to the server. The typical method for doing this is

window.onerror = (message, url, line, column, error) => {
  // log `error` back to the server
};

Possibly Unhandled Rejection NodeJS Promise Hook

###Unhandled Rejection Tracking

Several promise libraries such as bluebird and when as well as some native promise implementations offer potentially unhandled rejection tracking. This means that the following:

Promise.reject(new Error("err")); // never attach a `catch`

	Per https://code.google.com/p/v8/codesearch#v8/trunk/src/runtime.cc


	%CreateSymbol
	%CreatePrivateSymbol
	%CreateGlobalPrivateSymbol
	%NewSymbolWrapper
	%SymbolDescription
	%SymbolRegistry
	%SymbolIsPrivate

	var os = require("os");

	//Create function to get CPU information
	function cpuAverage() {

	//Initialise sum of idle and time of cores and fetch CPU info
	var totalIdle = 0, totalTick = 0;
	var cpus = os.cpus();

	//Loop through CPU cores

	const router = [{
	path: '*',
	method: '*',
	handle: function(req, res) {
	res.writeHead(200, {'Content-Type': 'text/plain'});
	res.end('404');
	}
	}];

	listen(port, cb) {
	const server = http.createServer((req, res) => {
	res.statusCode = 200;
	res.setHeader("Content-Type", "text/plain");
	res.end("Hello World\n");
	});

	return server.listen.apply(server, arguments);
	}