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38 lines
1.7 KiB
38 lines
1.7 KiB
'use strict'; |
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var $ = require('../internals/export'); |
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var uncurryThis = require('../internals/function-uncurry-this'); |
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var getOwnPropertyDescriptor = require('../internals/object-get-own-property-descriptor').f; |
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var toLength = require('../internals/to-length'); |
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var toString = require('../internals/to-string'); |
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var notARegExp = require('../internals/not-a-regexp'); |
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var requireObjectCoercible = require('../internals/require-object-coercible'); |
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var correctIsRegExpLogic = require('../internals/correct-is-regexp-logic'); |
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var IS_PURE = require('../internals/is-pure'); |
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// eslint-disable-next-line es-x/no-string-prototype-endswith -- safe |
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var un$EndsWith = uncurryThis(''.endsWith); |
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var slice = uncurryThis(''.slice); |
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var min = Math.min; |
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var CORRECT_IS_REGEXP_LOGIC = correctIsRegExpLogic('endsWith'); |
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// https://github.com/zloirock/core-js/pull/702 |
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var MDN_POLYFILL_BUG = !IS_PURE && !CORRECT_IS_REGEXP_LOGIC && !!function () { |
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var descriptor = getOwnPropertyDescriptor(String.prototype, 'endsWith'); |
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return descriptor && !descriptor.writable; |
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}(); |
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// `String.prototype.endsWith` method |
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// https://tc39.es/ecma262/#sec-string.prototype.endswith |
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$({ target: 'String', proto: true, forced: !MDN_POLYFILL_BUG && !CORRECT_IS_REGEXP_LOGIC }, { |
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endsWith: function endsWith(searchString /* , endPosition = @length */) { |
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var that = toString(requireObjectCoercible(this)); |
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notARegExp(searchString); |
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var endPosition = arguments.length > 1 ? arguments[1] : undefined; |
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var len = that.length; |
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var end = endPosition === undefined ? len : min(toLength(endPosition), len); |
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var search = toString(searchString); |
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return un$EndsWith |
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? un$EndsWith(that, search, end) |
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: slice(that, end - search.length, end) === search; |
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} |
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});
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