Window: свойство length
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
Значение
Число.
Пример
js
if (window.length) {
// этот документ содержит фреймы
}
Спецификации
| Specification |
|---|
| HTML # dom-length-dev |