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Filename : advance-string-index.js

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'use strict';
var charAt = require('../internals/string-multibyte').charAt;

// `AdvanceStringIndex` abstract operation
// https://tc39.es/ecma262/#sec-advancestringindex
module.exports = function (S, index, unicode) {
  return index + (unicode ? charAt(S, index).length : 1);
};