15 lines
652 B
JavaScript
15 lines
652 B
JavaScript
|
var global = require('../internals/global');
|
||
|
|
var call = require('../internals/function-call');
|
||
|
|
var aCallable = require('../internals/a-callable');
|
||
|
|
var anObject = require('../internals/an-object');
|
||
|
|
var tryToString = require('../internals/try-to-string');
|
||
|
|
var getIteratorMethod = require('../internals/get-iterator-method');
|
||
|
|
|
||
|
|
var TypeError = global.TypeError;
|
||
|
|
|
||
|
|
module.exports = function (argument, usingIterator) {
|
||
|
|
var iteratorMethod = arguments.length < 2 ? getIteratorMethod(argument) : usingIterator;
|
||
|
|
if (aCallable(iteratorMethod)) return anObject(call(iteratorMethod, argument));
|
||
|
|
throw TypeError(tryToString(argument) + ' is not iterable');
|
||
|
|
};
|