Sha256: 9ddbb613a3ff05061727aa19a62edf39445107231d7c54236986d3129f4b31e1
Contents?: true
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Versions: 29
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Stored size: 1.4 KB
Contents
'use strict';
var $ = require('../internals/export');
var createIteratorConstructor = require('../internals/create-iterator-constructor');
var requireObjectCoercible = require('../internals/require-object-coercible');
var InternalStateModule = require('../internals/internal-state');
var StringMultibyteModule = require('../internals/string-multibyte');
var codeAt = StringMultibyteModule.codeAt;
var charAt = StringMultibyteModule.charAt;
var STRING_ITERATOR = 'String Iterator';
var setInternalState = InternalStateModule.set;
var getInternalState = InternalStateModule.getterFor(STRING_ITERATOR);
// TODO: unify with String#@@iterator
var $StringIterator = createIteratorConstructor(function StringIterator(string) {
setInternalState(this, {
type: STRING_ITERATOR,
string: string,
index: 0
});
}, 'String', function next() {
var state = getInternalState(this);
var string = state.string;
var index = state.index;
var point;
if (index >= string.length) return { value: undefined, done: true };
point = charAt(string, index);
state.index += point.length;
return { value: { codePoint: codeAt(point, 0), position: index }, done: false };
});
// `String.prototype.codePoints` method
// https://github.com/tc39/proposal-string-prototype-codepoints
$({ target: 'String', proto: true }, {
codePoints: function codePoints() {
return new $StringIterator(String(requireObjectCoercible(this)));
}
});
Version data entries
29 entries across 28 versions & 9 rubygems