tonyonodi

var range = function(a, b) {
	var array,
		direction;

	array = new Array();
	direction = ( b - a ) / Math.abs( b - a );

	var i;
	for ( i = a; i <= b; i += direction )
		array.push( i );

tonyonodi

// source code for a quine (excluding this comment).
console.log(function(string, delimiter) {return string.slice(0, -27) + delimiter + string + delimiter + string.slice(-27)}("console.log(function(string, delimiter) {return string.slice(0, -27) + delimiter + string + delimiter + string.slice(-27)}(, String.fromCharCode(34)))", String.fromCharCode(34)))

tonyonodi

/* source: http://toddmotto.com/avoiding-anonymous-javascript-functions */


(function (window, document, undefined) {
  // la la la 
})(window, document);

tonyonodi

// Prototypeless objects in JS

var map = Object.create(null); // null has no protype or properties

"toString" in map;
// false

tonyonodi

cmd + shift + p
Search "Package Control"

tonyonodi

// compares contents but nor order... which may or may not be what you want
var arr1 = [1,2,3],
  arr2 = [1,2,3];
  
arr1.every(function(item) {
  return arr2.indexOf(item) >= 0;
})

tonyonodi

Obviously you can't parse XML with regex but if you just need to grab some values from a feed quickly...

(?<=tag>).*(?=<\/tag)

should do the trick. Falls over if anything is nested etc.

tonyonodi

(function(n) {
	return (function(fact_iter) {
		return fact_iter(fact_iter, 1, 1)
	})(function(f_i, product, counter) {
		return counter > n ? 
			product :
			f_i(f_i, counter * product, counter + 1)
	})
})(5) // returns 5! or 120

tonyonodi

// doesn't work for some reason
lambda {|n| 
	lambda {|fact_iter| 
		fact_iter(fact_iter, 1, 1)
	}.call(lambda {|f_i, product, counter|
		if counter > n
			product
		else
			f_i(f_i, counter * product, counter + 1)
		end

tonyonodi

// Turn a horrible string into a slug
"  My  string -is 1234!!5 here".trim()
                               .toLowerCase()
                               .replace(/[\s\-]+/g, "-")
                               .replace(/[^\w\-]+/g, "");