diff options
Diffstat (limited to 'node_modules/core-js/modules/esnext.iterator.map.js')
| -rw-r--r-- | node_modules/core-js/modules/esnext.iterator.map.js | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/node_modules/core-js/modules/esnext.iterator.map.js b/node_modules/core-js/modules/esnext.iterator.map.js new file mode 100644 index 0000000..054a7d1 --- /dev/null +++ b/node_modules/core-js/modules/esnext.iterator.map.js @@ -0,0 +1,23 @@ +'use strict'; +// https://github.com/tc39/proposal-iterator-helpers +var $ = require('../internals/export'); +var aFunction = require('../internals/a-function'); +var anObject = require('../internals/an-object'); +var createIteratorProxy = require('../internals/iterator-create-proxy'); +var callWithSafeIterationClosing = require('../internals/call-with-safe-iteration-closing'); + +var IteratorProxy = createIteratorProxy(function (arg) { + var iterator = this.iterator; + var result = anObject(this.next.call(iterator, arg)); + var done = this.done = !!result.done; + if (!done) return callWithSafeIterationClosing(iterator, this.mapper, result.value); +}); + +$({ target: 'Iterator', proto: true, real: true }, { + map: function map(mapper) { + return new IteratorProxy({ + iterator: anObject(this), + mapper: aFunction(mapper) + }); + } +}); |
