* @param obj the target obj * @return an iterator over the content of obj, or null if not found * @throws NoSuchMethodException if no iterator() method * @throws IllegalAccessException if iterator() method not callable * @throws InvocationTargetException if iterator() method throwed */publi...
If it does not support either of those protocols, TypeError is raised. If the second argument, sentinel, is given, then object must be a callable object. The iterator created in this case will call object with no arguments for each call to its __next__() method; if the value returned...
...1 } // Uncaught TypeError: Result of the Symbol.iterator method is not an object // 翻译:Symbol.iterator...obj = {}; obj[Symbol.iterator] = arr[Symbol.iterator].bind(arr); for (let item of obj) { console.log 82320 Iterator 和 for-of 循环...
method = js_dup(it->next); } else { method = JS_GetProperty(ctx, it->obj, JS_ATOM_return); if (JS_IsException(method)) goto fail; } it->limit--; item = JS_IteratorNext(ctx, it->obj, method, 0, NULL, pdone); JS_FreeValue(ctx, method); if (JS_IsException(item)) goto...
Anycallablemay be used; such as a string containing a function name, an array for a method, or an anonymous function. 示例#2 Callback basic examples <?php $dir= newFilesystemIterator(__DIR__); // Filter large files ( > 100MB) ...
The solution is to extend the RecursiveArrayIterator class and override the hasChildren method appropriately. Something like the following might be suitable:<?phpclass RecursiveArrayOnlyIterator extends RecursiveArrayIterator { public function hasChildren() { return is_array($this->current()); }}?>...
This method allows wrapping "iterator-like" objects with an iterator. Returns the object if it is already an iterator, returns a wrapping iterator if the passed object implements a callable @@iterator property. class Iter { next() { return { done: false, value: 1 }; } } const iter = ...
methods = {}forsuperclsincls.__mro__:forname, methodinvars(supercls).items():ifnotcallable(method):continue# note role declarationsifhasattr(method,"_sa_instrument_role"): role = method._sa_instrument_roleassertrolein("appender","remover","iterator","converter", ...
In Python, an iterator is an object used to iterate across iterable objects such as lists, tuples, dicts, and sets. The iter() method is used to initialize the iterator object. Iteration is accomplished through the usage of the next() method. Iterators can be found all across Python. ...
self.assertNotIsInstance(NextOnly(),Iterator) 开发者ID:IronLanguages,项目名称:ironpython3,代码行数:26,代码来源:test_collections.py 示例4: test_get_sample_keys_method_local_only ▲点赞 6▼ # 需要导入模块: from collections import abc [as 别名]# 或者: from collections.abc importIterator[as 别名...