32 lines
1.2 KiB
JavaScript
32 lines
1.2 KiB
JavaScript
'use strict';
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var fails = require('../internals/fails');
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var padStart = require('../internals/string-pad').start;
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var abs = Math.abs;
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var DatePrototype = Date.prototype;
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var getTime = DatePrototype.getTime;
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var nativeDateToISOString = DatePrototype.toISOString;
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// `Date.prototype.toISOString` method implementation
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// https://tc39.github.io/ecma262/#sec-date.prototype.toisostring
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// PhantomJS / old WebKit fails here:
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module.exports = (fails(function () {
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return nativeDateToISOString.call(new Date(-5e13 - 1)) != '0385-07-25T07:06:39.999Z';
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}) || !fails(function () {
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nativeDateToISOString.call(new Date(NaN));
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})) ? function toISOString() {
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if (!isFinite(getTime.call(this))) throw RangeError('Invalid time value');
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var date = this;
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var year = date.getUTCFullYear();
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var milliseconds = date.getUTCMilliseconds();
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var sign = year < 0 ? '-' : year > 9999 ? '+' : '';
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return sign + padStart(abs(year), sign ? 6 : 4, 0) +
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'-' + padStart(date.getUTCMonth() + 1, 2, 0) +
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'-' + padStart(date.getUTCDate(), 2, 0) +
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'T' + padStart(date.getUTCHours(), 2, 0) +
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':' + padStart(date.getUTCMinutes(), 2, 0) +
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':' + padStart(date.getUTCSeconds(), 2, 0) +
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'.' + padStart(milliseconds, 3, 0) +
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'Z';
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} : nativeDateToISOString;
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