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Set.has() function in JavaScript
The has() function of the Set accepts a value and verifies whether the current object contains the specified value. If so, this function returns the boolean value true else, it returns false.
Syntax
Its Syntax is as follows
setObj.has()
Example
<html>
<head>
<title>JavaScript Example</title>
</head>
<body>
<script type="text/javascript">
const setObj = new Set();
setObj.add('Java');
setObj.add('JavaFX');
setObj.add('JavaScript');
setObj.add('HBase');
document.write("Contents of the Set: ");
document.write("<br>");
for (let item of setObj) {
document.write(item);
document.write("<br>");
}
var result = setObj.has('JavaFX');
if(result) {
document.write("Set object contains specified element");
}else {
document.write("Set object contains specified element");
}
</script>
</body>
</html>Output
Contents of the Set: Java JavaFX JavaScript HBase trueSet object contains specified element
Updated on: 25-Jun-2020
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