53 lines
2 KiB
JavaScript
53 lines
2 KiB
JavaScript
'use strict';
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var $ = require('../internals/export');
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var hide = require('../internals/hide');
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var requireObjectCoercible = require('../internals/require-object-coercible');
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var anObject = require('../internals/an-object');
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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 speciesConstructor = require('../internals/species-constructor');
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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_ALL = wellKnownSymbol('replaceAll');
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var RegExpPrototype = RegExp.prototype;
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var $replaceAll = function (string, replaceValue) {
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var rx = anObject(this);
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var flags = String('flags' in RegExpPrototype ? rx.flags : getRegExpFlags.call(rx));
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if (!~flags.indexOf('g')) {
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rx = new (speciesConstructor(rx, RegExp))(rx.source, flags + 'g');
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}
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return String(string).replace(rx, replaceValue);
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};
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// `String.prototype.replaceAll` method
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// https://github.com/tc39/proposal-string-replace-all
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$({ 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 replacer, string, searchString, template, result, index;
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if (searchValue != null) {
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replacer = searchValue[REPLACE_ALL];
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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 && isRegExp(searchValue)) {
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return $replaceAll.call(searchValue, O, 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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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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for (index = 1; index < template.length; index++) {
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result += String(replaceValue(searchString, index - 1, string));
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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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IS_PURE || REPLACE_ALL in RegExpPrototype || hide(RegExpPrototype, REPLACE_ALL, $replaceAll);
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