HTML DOM isSupported method
Examples
Analyzing the button element supports version 2.0 kernel features:
var item=document.getElementsByTagName("BUTTON")[0];
item.isSupported("Core","2.0");
item.isSupported("Core","2.0");
Output:
true
try it"
Definition and Usage
isSupported () method is used to determine whether the current node supports a feature.
Browser Support
All major browsers support isSupported method
Note: Internet Explorer 8 and earlier versions of IE does not support this method.
grammar
node.isSupported(feature,version)
parameter
| 参数 | 类型 | 描述 |
|---|---|---|
| feature | String | 必须。定义了你想要检查是否支持的特性 |
| version | String | 可选。定义了你想检查是否支持的版本。 |
return value
| 类型 | 描述 |
|---|---|
| Boolean | 如果支持该特性返回 true， 否则返回false。 |
technical details
| DOM version | Core Level 2 Node Object |
|---|