.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 toString = require('../internals/to-string');
   4 var InternalStateModule = require('../internals/internal-state');
   5 var defineIterator = require('../internals/define-iterator');
   6
   7 var STRING_ITERATOR = 'String Iterator';
   8 var setInternalState = InternalStateModule.set;
   9 var getInternalState = InternalStateModule.getterFor(STRING_ITERATOR);
  10
  11 // `String.prototype[@@iterator]` method
  12 // https://tc39.es/ecma262/#sec-string.prototype-@@iterator
  13 defineIterator(String, 'String', function (iterated) {
  14   setInternalState(this, {
  15     type: STRING_ITERATOR,
  16     string: toString(iterated),
  17     index: 0
  18   });
  19 // `%StringIteratorPrototype%.next` method
  20 // https://tc39.es/ecma262/#sec-%stringiteratorprototype%.next
  21 }, function next() {
  22   var state = getInternalState(this);
  23   var string = state.string;
  24   var index = state.index;
  25   var point;
  26   if (index >= string.length) return { value: undefined, done: true };
  27   point = charAt(string, index);
  28   state.index += point.length;
  29   return { value: point, done: false };
  30 });