HTML DOM Attributes specified attribute
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Definition and usage
If the attribute is specified, then specified The attribute returns true.
Warning
If the attribute is not specified, this attribute returns an error.
This may cause your program to crash.
Example
Is the style attribute specified?
document.getElementById("myDiv").getAttributeNode("style").specified
Syntax
attribute.specified
Return value
| Type | Description |
|---|---|
| Boolean value | Returns true if the attribute is specified. Otherwise, returns an error. |
Browser support
attribute.specified It is a feature of DOM Level 1 (1998).
All browsers support it:
| Chrome | IE | Edge | Firefox | Safari | Opera |
|---|---|---|---|---|---|
| Chrome | IE | Edge | Firefox | Safari | Opera |
| Support | 9-11 | Support | Support | Support | Support |
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