Element.hasAttributes() - Web APIs 编辑
The hasAttributes()
method of the Element
interface returns a Boolean
indicating whether the current element has any attributes or not.
Syntax
var result = element.hasAttributes();
Return value
result
- holds the return value
true
orfalse
.
Examples
let foo = document.getElementById('foo');
if (foo.hasAttributes()) {
// Do something with 'foo.attributes'
}
Polyfill
;(function(prototype) {
prototype.hasAttributes = prototype.hasAttributes || function() {
return (this.attributes.length > 0);
}
})(Element.prototype);
Specifications
Specification | Status | Comment |
---|---|---|
DOM The definition of 'Element.hasAttributes()' in that specification. | Living Standard | Moved from the Node interface to the more specialized Element interface. |
Document Object Model (DOM) Level 3 Core Specification The definition of 'hasAttributes()' in that specification. | Obsolete | No change from Document Object Model (DOM) Level 2 Core Specification |
Document Object Model (DOM) Level 2 Core Specification The definition of 'hasAttributes()' in that specification. | Obsolete | Initial definition, on the Node interface. |
Browser compatibility
BCD tables only load in the browser
See also
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