Gary Katsevman gkatsev

Strict Mode

Overview

Strict mode is an opt-in mode for JavaScript that fixes, disables, and changes some of the most problematic features in the language.

Strict mode is invoked with "use strict"; statement at the top of the current scope. So, it works both in functions and in files. It is better to only ever specifiy strict mode inside of functions because this simplifies concatenating

	var Ctor = (function(window, undefined) {
	var private = 5;

	var Ctor = function() {
	// ...
	}

	Ctro.protoype.foo = function() {
	return private;
	}

	// loadScript :: String, function, predicate [, arg1 [, arg2 [, ...]]] -> undefined
	// The optional arguments will get passed to the callback
	var loadScript = (function() {
	var scripts = {};

	return function(url, callback, predicate) {
	var
	body = document.body,
	script = document.createElement('script'),
	loaded = false,

	if (this.player_.muted()) {
	return 0;
	} else {
	return this.player_.volume();
	}

	if (/android/i.test(navigator.userAgent) && !/chrome/i.test(navigator.userAgent)) {
	this.on('click', function(event) {
	event.preventDefault();
	event.stopPropagation();
	});
	} else {
	this.on('touchend', function(event) {
	event.preventDefault();
	event.stopPropagation();
	});

	(function(x, y, z) {
	"use strict";

	x = y = 0;
	z = arguments.length;

	for (; y < z; y++) {
	x += arguments[y];
	}

	String.prototype.splitSome = function(del, n){
	var a = this.split(del)
	, b = a.slice(n).join(del)

	a.length = n
	a[a.length] = b
	return a
	};

	"one,two,three,four,five".splitSome(',', 3)

	#!/usr/bin/env python

	import SimpleHTTPServer
	class CORSHTTPRequestHandler(SimpleHTTPServer.SimpleHTTPRequestHandler):
	def send_head(self):
	"""Common code for GET and HEAD commands.

	This sends the response code and MIME headers.

	Return value is either a file object (which has to be copied

	(function (n) {
	var f = '',
	s = n < 0 ? '-' : f,
	p = [],
	l = 0,
	m = 4294967296,
	o = m * 1024,
	a = Math.floor;
	o *= o;
	n = a(s ? -n : n);

	var foo = {};
	var bar = Object.create(foo);