HTML DOM Attributes specified attribute
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definition and usage
if the attribute is specified, then specified attribute returns true.
warning
if the attribute is not specified, this attribute returns an error.
this may cause your program to crash.
example
whether the style attribute has been specified?
document.getElementById("myDiv").getAttributeNode("style").specified
syntax
attribute.specified
return value
| type | description |
|---|---|
| boolean value | if specified attribute, then return true. Otherwise return error. |
browser support
attribute.specified a cece DOM Level 1 (1998) ga'a.
所有浏览器都支持它：
| Chrome | IE | Edge | Firefox | Safari | Opera |
|---|---|---|---|---|---|
| Chrome | IE | Edge | Firefox | Safari | Opera |
| 支持 | 9-11 | 支持 | 支持 | 支持 | 支持 |
- 上一页 setNamedItem()
- 下一页 value
- 返回上一层 HTML DOM Attributes ɗanin
