element.hasAttributes
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
La méthode hasAttributes()
, rattachée à l'interface Element
, renvoie une valeur booléenne indiquant si le nœud courant a au moins un attribut ou non.
Syntaxe
js
var result = element.hasAttributes();
Valeur de retour
result
-
contient la valeur de retour
true
oufalse
.
Exemple
js
var foo = document.getElementById("foo");
if (foo.hasAttributes()) {
// faire quelque chose avec 'foo.attributes'
}
Polyfill
js
(function (prototype) {
prototype.hasAttributes =
prototype.hasAttributes ||
function () {
return this.attributes.length > 0;
};
})(Element.prototype);
Spécifications
Specification |
---|
DOM # ref-for-dom-element-hasattributes① |
Compatibilité des navigateurs
Report problems with this compatibility data on GitHubdesktop | mobile | |||||||||||
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hasAttributes |
Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
- See implementation notes.
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.