TjD konijn
konijn
/ gist:4635185
Last active
December 11, 2015 17:29
Log in the console all globals, still will not tell you where you created the global..
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| /* Dump all 'user space' globals | |
| Many thanks to glutamat: http://stackoverflow.com/questions/14585537 */ | |
| void( (function() | |
| { | |
| var w = document.body.appendChild( document.createElement("iframe") ).contentWindow, | |
| known = | |
| [ | |
| "screenLeft" , "screenTop" , "scrollX" , "scrollY" , "pageYOffset" , "pageXOffset" , /* Scrolling related built-ins */ | |
| "innerWidth" , "innerHeight" , "outerWidth" , "outerHeight" , /* Size related built-ins */ | |
| "defaultstatus" , "defaultStatus", /* Status bar text related built-ins */ |
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| function isPrime( n ) | |
| { | |
| if( n < 2 ) | |
| return false | |
| if( n < 4 ) | |
| return true; | |
| if( n % 2 == 0 ) | |
| return false; | |
| if( n % 3 == 0 ) | |
| return false; |
konijn
/ gist:6636750
Created
September 20, 2013 12:30
— forked from shamansir/gist:3007244
Overlapping squares in js
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| // Excerpt from: https://github.com/Animatron/player/blob/master/anm.collisions.js | |
| function edgeTest(p1, p2, p3, r2) { | |
| var rot = [ -(p2[1] - p1[1]), | |
| p2[0] - p1[0] ]; | |
| var ref = (rot[0] * (p3[0] - p1[0]) + | |
| rot[1] * (p3[1] - p1[1])) >= 0; | |
| for (var i = 0, il = r2.length; i < il; i+=2) { |
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| function formatNumber( n , precision ) | |
| { | |
| n = n * 1; | |
| return n.toLocaleString().split(".")[0] + "." + n.toFixed( precision || 2 ).split(".")[1]; | |
| } |
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| /* Permute will give all permutations for the provided array ( sourceSet ) | |
| do not provide usedSet nor permutationSet | |
| Based on http://stackoverflow.com/a/9960925/7602 | |
| */ | |
| function permute( sourceSet , usedSet , permutationsSet ) { | |
| permutationsSet = permutationsSet || []; | |
| usedSet = usedSet || []; | |
| for (var i = 0; i < sourceSet.length; i++) { | |
| usedSet.push( sourceSet.splice(i, 1)[0] ); | |
| if (!sourceSet.length) |
konijn
/ ArrayAdditionI.js
Created
December 3, 2013 13:56
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| function sortfunction(a, b) | |
| { | |
| return (a - b) //causes an array to be sorted numerically and ascending | |
| } | |
| function canWeDoIt( target , a ) | |
| { | |
| if( a.length == 1 ) | |
| return (a[0] == target); | |
| if( a[0] == target ) |
konijn
/ jsbin.IToMURiM.html
Created
December 18, 2013 03:20
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta name="description" content="ISEE Math Challenge Generator" /> | |
| <meta charset=utf-8 /> | |
| <title></title> | |
| </head> | |
| <body> | |
| </body> |
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| function powerSet( list ){ | |
| var set = [], | |
| listSize = list.length, | |
| combinationsCount = (1 << listSize); | |
| for (var i = 1; i < combinationsCount ; i++ , set.push(combination) ) | |
| for (var j=0, combination = [];j<listSize;j++) | |
| if ((i & (1 << j))) | |
| combination.push(list[j]); | |
| return set; |
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| function fillTemplate( s ) | |
| { //Replace ~ with further provided arguments | |
| for( var i = 1, a = s.split('~'), s = '' ; i < arguments.length ; i++ ) | |
| s = s + a.shift() + arguments[i]; | |
| return s + a.join(""); | |
| } |
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| //Good | |
| function lambdafy( f ) | |
| { | |
| return function lambdafier() { | |
| var args = Array.prototype.slice.call(arguments); | |
| return function lambda(){ | |
| f.apply( this , args ); | |
| } | |
| } | |
| } |
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