Window:length 属性
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.
值
数字。
示例
js
if (window.length) {
// 这是一个包含子框架的文档。
}
规范
Specification |
---|
HTML # dom-length-dev |
浏览器兼容性
Report problems with this compatibility data on GitHubdesktop | mobile | |||||||||||
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length |
Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.