| 'use strict'; |
| var $export = require('./_export'); |
| var $fails = require('./_fails'); |
| var aNumberValue = require('./_a-number-value'); |
| var $toPrecision = 1.0.toPrecision; |
| |
| $export($export.P + $export.F * ($fails(function () { |
| // IE7- |
| return $toPrecision.call(1, undefined) !== '1'; |
| }) || !$fails(function () { |
| // V8 ~ Android 4.3- |
| $toPrecision.call({}); |
| })), 'Number', { |
| toPrecision: function toPrecision(precision) { |
| var that = aNumberValue(this, 'Number#toPrecision: incorrect invocation!'); |
| return precision === undefined ? $toPrecision.call(that) : $toPrecision.call(that, precision); |
| } |
| }); |