JavaScript WeakSet delete() Method

JavaScript WeakSet delete() Method with example, WeakSet objects are collections of objects. An object in the WeakSet occurs once in the WeakSet collection, javascript weakset add() method, javascript weakset delete() method, javascript weakset has() method etc.

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JavaScript WeakSet delete() method

The JavaScript WeakSet delete() method is used to remove the specified object from WeakSet object.

Syntax

The delete() method is represented by the following syntax:

WeakSetObj.delete()

JavaScript WeakSet delete() method example

Let's see an example to delete the specified elements from the WeakSet object.

<script>
var ws = new WeakSet();
var obj={};
ws.add(obj);
document.writeln("Element present before invoking delete() method: "+ws.has(obj)+"<br>");
ws.delete(obj);
document.writeln("Element present before invoking delete() method: "+ws.has(obj));
</script>

Test it Now

Output:

Element present before invoking delete() method: true
Element present after invoking delete() method: false

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