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HTML DOM Select Object
The HTML DOM select Object represent the <select> element of an HTML document.
Let’s see how to create select object
Syntax
Following is the syntax −
document.createElement(“SELECT”);
Properties
Following are the properties of select Object −
| Property | Explanation |
|---|---|
| autofocus | It returns and modify whether the drop-down list should get focused or not when page load. |
| disabled | It returns and modify whether the drop-down list is disabled or not. |
| length | It returns the number of |
| form | It returns the reference of the form that contain the drop-down list in the HTML document. |
| multiple | It returns and modify whether multiple options can be selected from a drop-down list or not. |
| name | It returns and alter the value of the name attribute of drop-down list. |
| size | It returns and alter the value of the size attribute of drop-down list. |
| type | It returns the value of the type attribute of drop-down list. |
| value | It returns and modify the content of the value attribute of drop-down list. |
| selectedIndex | It returns and modify the index of selected option of the drop-down list in an HTML document. |
Methods
Following are the methods −
| Method | Explanation |
|---|---|
| add() | It adds a new option to a drop-down list in an HTML document. |
| remove() | It deletes a new option from a drop-down list in an HTML document. |
| checkValidity() | It checks the validity of a drop-down list in an HTML document. |
Example
Let us see an example of HTML DOM select object −
<!DOCTYPE html>
<html>
<head>
<style>
body{
text-align:center;
background-color:#fff;
color:#0197F6;
}
h1{
color:#23CE6B;
}
.btn{
background-color:#fff;
border:1.5px dashed #0197F6;
height:2rem;
border-radius:2px;
width:60%;
margin:2rem auto;
display:block;
color:#0197F6;
outline:none;
cursor:pointer;
}
</style>
</head>
<body>
<h1>DOM select Object Demo</h1>
<button onclick="createDropDownList()" class="btn">Create a drop-down list</button>
<script>
function createDropDownList() {
var dropDown = document.createElement("SELECT");
dropDown.innerHTML="<option>CAKE</option><option>PIZZA<option><option>BURGER</option>";
document.body.appendChild(dropDown);
}
</script>
</body>
</html>This will produce the following output −
Click on “Create a drop-down listCreate a drop-down list” button to create a drop-down list.
Updated on: 30-Jul-2019
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