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/Web APIs

CustomElementRegistry.get()

The get() method of the CustomElementRegistry interface returns the constructor for a previously-defined custom element.

Syntax

constructor = customElements.get(name);

Parameters

name

The name of the custom element whose constructor you want to return a reference to.

Return value

The constructor for the named custom element, or undefined if there is no custom element definition with that name.

Examples

customElements.define('my-paragraph',
  class extends HTMLElement {
    constructor() {
      let templateContent = document.getElementById('my-paragraph').content;
      super() // returns element this scope
        .attachShadow({mode: 'open'}) // sets AND returns this.shadowRoot
        .append(templateContent.cloneNode(true));
  }
})

// Return a reference to the my-paragraph constructor
let ctor = customElements.get('my-paragraph');

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
get
67
Support for 'Customized built-in elements' as well.
54
Support for 'Autonomous custom elements' only.
79
Support for 'Customized built-in elements' as well.
79
Support for 'Autonomous custom elements' only.
63
No
54
Support for 'Customized built-in elements' as well.
41
Support for 'Autonomous custom elements' only.
10.1
Supports 'Autonomous custom elements' but not 'Customized built-in elements'
67
Support for 'Customized built-in elements' as well.
54
Support for 'Autonomous custom elements' only.
67
Support for 'Customized built-in elements' as well.
54
Support for 'Autonomous custom elements' only.
63
48
Support for 'Customized built-in elements' as well.
41
Support for 'Autonomous custom elements' only.
10.3
Supports 'Autonomous custom elements' but not 'Customized built-in elements'
9.0
Support for 'Customized built-in elements' as well.
6.0
Support for 'Autonomous custom elements' only.

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https://developer.mozilla.org/en-US/docs/Web/API/CustomElementRegistry/get