Course schedule

JS reference manual

JS 参考手册（类别排序）
JS 参考手册（字母排序）

JavaScript

JS Array
JS Boolean
JS Class
JS Date
JS Error
JS Global
JS JSON
JS Map
JS Math
JS Number
JS Promise
JS RegExp
JS Set
JS String
JS 对象
JS 运算符
JS 运算符优先级
JS 语句
JS 类型化数组

Window

Window Object
Window Console
Window History
Window Location
Window Navigator
Window Screen

HTML DOM

HTML Document
HTML Element
HTML Attribute
HTML Event
HTML Event 对象
HTML Collection
HTML NodeList
HTML DOMTokenList
HTML Style

Web API

API Canvas
API Console
API Fetch
API Fullscreen
API Geolocation
API History
API MediaQueryList
API Storage
API Validation
API Web

HTML 对象

<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>
<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>
<sub>
<summary>
<sup>
<table>
<tbody>
<td>
<tfoot>
<th>
<thead>
<tr>
<textarea>
<time>
<title>
<track>
<u>
<ul>
<var>
<video>

Andre referatshåndbøger

CSSStyleDeclaration
JS typekonvertering

Valgfri kurser

Kursusanbefalinger:

CodeW3C.coms urtepose

Select type egenskab

HTML DOM Select objekt

Definition og brug

type Egenskab returnerer hvilken type formularelement rullegardinlisten er.

For rullegardinlisten vil værdien være "select-one" eller "select-multiple".

Se også:

HTML referatshåndbog:HTML <select> tag

Eksempel

Eksempel 1

Hvilken type formularelement er en rullegardinliste?

var x = document.getElementById("mySelect").type;

Prøv det selv

Eksempel 2

Hvilken type formularelement er en rullegardinliste, som tillater flere valg?

var x = document.getElementById("mySelect").type;