HTML DOM Element isSupported() 方法
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定义和用法
isSupported() 方法检测指定节点是否支持指定特性。
isSupported() 方法已被弃用。请勿使用它。
语法
elementisSupported(feature, version)
Parameter
| Parameter | Description |
|---|---|
| feature | Required. Check if the feature is supported. |
| version | Optional. The version of the feature. |
Return value
| Type | Description |
|---|---|
| Boolean value | If the feature is supported, it is true, otherwise it is false. |
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