Element.hasAttribute()
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.
El método Elemento.hasAttribute()
devuelve un valor Booleano indicando si el elemento tiene el atributo especificado o no.
Sintaxis
Ejemplo
js
var foo = document.getElementById("foo");
if (foo.hasAttribute("bar")) {
// hacer algo
}
Polyfill
js
(function (prototype) {
prototype.hasAttribute =
prototype.hasAttribute ||
function (name) {
return !!(this.attributes[name] && this.attributes[name].specified);
};
})(Element.prototype);
Especificaciones
Specification |
---|
DOM # ref-for-dom-element-hasattribute① |
Compatibilidad con navegadores
Report problems with this compatibility data on GitHubdesktop | mobile | |||||||||||
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hasAttribute |
Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
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.