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50 lines
1.9 KiB
50 lines
1.9 KiB
'use strict'; |
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var $ = require('../internals/export'); |
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var requireObjectCoercible = require('../internals/require-object-coercible'); |
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var isRegExp = require('../internals/is-regexp'); |
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var getRegExpFlags = require('../internals/regexp-flags'); |
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var wellKnownSymbol = require('../internals/well-known-symbol'); |
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var IS_PURE = require('../internals/is-pure'); |
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var REPLACE = wellKnownSymbol('replace'); |
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var RegExpPrototype = RegExp.prototype; |
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// `String.prototype.replaceAll` method |
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// https://github.com/tc39/proposal-string-replace-all |
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$({ target: 'String', proto: true }, { |
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replaceAll: function replaceAll(searchValue, replaceValue) { |
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var O = requireObjectCoercible(this); |
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var IS_REG_EXP, flags, replacer, string, searchString, template, result, position, index; |
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if (searchValue != null) { |
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IS_REG_EXP = isRegExp(searchValue); |
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if (IS_REG_EXP) { |
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flags = String(requireObjectCoercible('flags' in RegExpPrototype |
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? searchValue.flags |
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: getRegExpFlags.call(searchValue) |
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)); |
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if (!~flags.indexOf('g')) throw TypeError('`.replaceAll` does not allow non-global regexes'); |
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} |
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replacer = searchValue[REPLACE]; |
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if (replacer !== undefined) { |
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return replacer.call(searchValue, O, replaceValue); |
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} else if (IS_PURE && IS_REG_EXP) { |
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return String(O).replace(searchValue, replaceValue); |
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} |
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} |
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string = String(O); |
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searchString = String(searchValue); |
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if (searchString === '') return replaceAll.call(string, /(?:)/g, replaceValue); |
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template = string.split(searchString); |
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if (typeof replaceValue !== 'function') { |
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return template.join(String(replaceValue)); |
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} |
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result = template[0]; |
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position = result.length; |
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for (index = 1; index < template.length; index++) { |
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result += String(replaceValue(searchString, position, string)); |
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position += searchString.length + template[index].length; |
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result += template[index]; |
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} |
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return result; |
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} |
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});
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