| export function $(value) { | |
| if(value == null) { | |
| return [] | |
| } | |
| if(typeof value === "string") { | |
| return [...document.querySelectorAll(value)] | |
| } | |
| if(typeof value.nodeType === "number") { | |
| return Array.of(value) | |
| } |
| /** | |
| * NEVER BLOCKING LOOP : implementation of the infamous setTimeout 0 hack, with time checking in order to guarantee fluidity without sacrificing execution speed. | |
| * | |
| * USAGE : | |
| * var array = ["a way too big array that is heavy to process"] | |
| * optimizeFor({ | |
| * nbIterations: array.length, | |
| * each:function( index ) { | |
| * doSomethingUsefulWith( array[ index ] ); | |
| * }, |
| IMPORTANT | |
| Please duplicate this radar for a Safari fix! | |
| This will clean up a 50-line workaround. | |
| rdar://22376037 (https://openradar.appspot.com/radar?id=4965070979203072) | |
| ////////////////////////////////////////////////////////////////////////////// | |
| (Now available as a standalone repo.) |
| app.filter('bytes', function() { | |
| return function(bytes, precision) { | |
| if (isNaN(parseFloat(bytes)) || !isFinite(bytes)) return '-'; | |
| if (typeof precision === 'undefined') precision = 1; | |
| var units = ['bytes', 'kB', 'MB', 'GB', 'TB', 'PB'], | |
| number = Math.floor(Math.log(bytes) / Math.log(1024)); | |
| return (bytes / Math.pow(1024, Math.floor(number))).toFixed(precision) + ' ' + units[number]; | |
| } | |
| }); |
| function countCSSRules() { | |
| var results = '', | |
| log = ''; | |
| if (!document.styleSheets) { | |
| return; | |
| } | |
| for (var i = 0; i < document.styleSheets.length; i++) { | |
| countSheet(document.styleSheets[i]); | |
| } | |
| function countSheet(sheet) { |
Google Chrome Developers says:
The new WOFF 2.0 Web Font compression format offers a 30% average gain over WOFF 1.0 (up to 50%+ in some cases). WOFF 2.0 is available since Chrome 36 and Opera 23.
Some examples of file size differences: WOFF vs. WOFF2
I recently had several days of extremely frustrating experiences with service workers. Here are a few things I've since learned which would have made my life much easier but which isn't particularly obvious from most of the blog posts and videos I've seen.
I'll add to this list over time – suggested additions welcome in the comments or via twitter.com/rich_harris.
Chrome 51 has some pretty wild behaviour related to console.log in service workers. Canary doesn't, and it has a load of really good service worker related stuff in devtools.
