polyfill-service/polyfills/__dist/performance.now.json

A polyfill combinator

{"browsers":{"bb":"<10","chrome":"<24","ie":"<10","ios_saf":"<8 || 8.1","firefox":"<15","opera":"<15","op_mob":"<24","safari":"<8","firefox_mob":"<15"},"dependencies":["Date.now"],"docs":"https://developer.mozilla.org/en-US/docs/Web/API/Performance/now","baseDir":"performance/now","hasTests":false,"rawSource":"\n// performance.now\n(function (global) {\n\nvar\nstartTime = Date.now();\n\nif (!global.performance) {\n    global.performance = {};\n}\n\nglobal.performance.now = function () {\n    return Date.now() - startTime;\n};\n\n}(this));\n","minSource":"!function(n){var e=Date.now();n.performance||(n.performance={}),n.performance.now=function(){return Date.now()-e}}(this);","detectSource":"'performance' in this && 'now' in this.performance"}