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JavaScript Reference

JavaScript

JS String JS Number JS Operators JS Statements JS Math JS Date JS Array JS Boolean JS RegExp JS Global JS Conversion

Browser BOM

Window Navigator Screen History Location

HTML DOM

DOM Document DOM Elements DOM Attributes DOM Events DOM Style

HTML Objects

<a> <abbr> <address> <area> <article> <aside> <audio> <b> <base> <bdo> <blockquote> <body> <br> <button> <canvas> <caption> <cite> <code> <col> <colgroup> <datalist> <dd> <del> <details> <dfn> <dialog> <div> <dl> <dt> <em> <embed> <fieldset> <figcaption> <figure> <footer> <form> <head> <header> <h1> - <h6> <hr> <html> <i> <iframe> <img> <ins> <input> button <input> checkbox <input> color <input> date <input> datetime <input> datetime-local <input> email <input> file <input> hidden <input> image <input> month <input> number <input> password <input> radio <input> range <input> reset <input> search <input> submit <input> text <input> time <input> url <input> week <kbd> <keygen> <label> <legend> <li> <link> <map> <mark> <menu> <menuitem> <meta> <meter> <nav> <object> <ol> <optgroup> <option> <output> <p> <param> <pre> <progress> <q> <s> <samp> <script> <section> <select> <small> <source> <span> <strong> <style> <sub> <summary> <sup> <table> <td> <th> <tr> <textarea> <time> <title> <track> <u> <ul> <var> <video>

Other Objects

CSSStyleDeclaration

HTML DOM isId Property

Attributes Object Reference Attribute Object

Example

Find out if an attribute is the element's ID attribute or not:

var x = document.getElementById("demo").attributes[0].isId;

The result of x could be:

true

Try it yourself »

Definition and Usage

The isId property returns true if the attribute is of type ID, otherwise it returns false.

This property is read-only.

Browser Support

Property
isId	Not supported	Not supported	Not supported	Not supported	Not supported

Note: This property was supported in Chrome, Firefox and Safari 5+, but support has been removed.

Syntax

attribute.isId

Technical Details

Return Value:	A Boolean, returns true if the attribute is of type ID, otherwise false
DOM Version	Core Level 3

Attributes Object Reference Attribute Object

COLOR PICKER

colorpicker

LEARN MORE:

Color Converter
Google Maps
Animated Buttons
Modal Boxes
Modal Images
Tooltips
Loaders
JS Animations
Progress Bars
Dropdowns
Slideshow
Side Navigation
HTML Includes
Color Palettes

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