.config/coc/extensions/node_modules/coc-prettier/node_modules/core-js/modules/es.string.iterator.js

   1 'use strict';
   2 var charAt = require('../internals/string-multibyte').charAt;
   3 var InternalStateModule = require('../internals/internal-state');
   4 var defineIterator = require('../internals/define-iterator');
   5
   6 var STRING_ITERATOR = 'String Iterator';
   7 var setInternalState = InternalStateModule.set;
   8 var getInternalState = InternalStateModule.getterFor(STRING_ITERATOR);
   9
  10 // `String.prototype[@@iterator]` method
  11 // https://tc39.es/ecma262/#sec-string.prototype-@@iterator
  12 defineIterator(String, 'String', function (iterated) {
  13   setInternalState(this, {
  14     type: STRING_ITERATOR,
  15     string: String(iterated),
  16     index: 0
  17   });
  18 // `%StringIteratorPrototype%.next` method
  19 // https://tc39.es/ecma262/#sec-%stringiteratorprototype%.next
  20 }, function next() {
  21   var state = getInternalState(this);
  22   var string = state.string;
  23   var index = state.index;
  24   var point;
  25   if (index >= string.length) return { value: undefined, done: true };
  26   point = charAt(string, index);
  27   state.index += point.length;
  28   return { value: point, done: false };
  29 });