jQuery isFunction() Method
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jQuery isFunction() Method
The jQuery isFunction() method determines if its argument is callable as a function.
Example
HTML Editor
<!DOCTYPE html>
<html lang="en-US">
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
</head>
<body>
<h1>jQuery isFunction() Method</h1>
<button>Click Me</button>
<script>
function myFunction(){
// dummy function
}
$(document).ready(function(){
$("button").click(function(){
alert($.isFunction(myFunction));
});
});
</script>
</body>
</html>
Syntax
$.isFunction(value);
Parameter Values
| Value | Type | Explanation |
|---|---|---|
| value | Required | Specifies a value to be tested. |
Return Values
| Value | Explanation |
|---|---|
| true | The argument is a callable function. |
| false | The argument is NOT a callable function. |
Reminder
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