HTML DOM TokenList supports() Method
The supports() method in HTML DOM is used to check if a specific token is supported in a DOM TokenList.
Syntax:
domtokenlist.supports(token)
Parameter values: It contains a single value token that specifies the name of the token which is to be checked.
Return value: It returns a boolean value that returns true if a specified token belongs to a DOM TokenList.
Example: Below HTML code illustrates the use of supports() method in HTML DOM.
HTML
<!DOCTYPE html>
< html >
< body style = "text-align:center" >
< h1 style = "color: green;" >
GeeksforGeeks
</ h1 >
< h2 >HTML DOM TokenList supports() Method</ h2 >
< iframe id = "iframeID" src =
</ iframe >
< p >
Click on the below button if the
iframe supports "allow-forms":or not
</ p >
< button onclick = "btnclick()" >
Click Here!
</ button >
< p id = "paraID" style = "font-size:25px" ></ p >
< script >
function btnclick() {
const list = document.getElementById(
"iframeID").sandbox;
document.getElementById("paraID").innerHTML
= list.supports("allow-forms");
}
</ script >
</ body >
</ html >
|
Output:
Supported Browsers:
- Google Chrome 49 and above
- Edge 17 and above
- Internet Explorer not supported
- Firefox 49 and above
- Safari 10.1 and above
- Opera 36 and above
Last Updated :
12 Jul, 2022
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