JavaScript Set delete() Method

JavaScript Set delete() Method with example, clear() method, javascript set methods, delete() method, entries() method, foreach() method, has() method, values() method etc.

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JavaScript Set delete() method

The JavaScript Set delete() method is used to remove all the elements from Set object.

Syntax

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

setObj.delete()

JavaScript Set delete() method example

Here, we will understand delete() method through various examples.

Example 1

Let's see a simple example of delete() method.

<script>
var set = new Set();
set.add("jQuery");
set.add("AngularJS");
set.add("Bootstrap");
document.writeln("Size before invoking delete() method: "+ set.size+"<br>");
set.delete("Bootstrap");
document.writeln("Size after invoking delete() method: "+set.size);
</script>

Test it Now

Output:

Size before invoking delete() method: 3
Size after invoking delete() method: 2

Example 2

Let's see an example to determine whether the set object contains the specified element.

<script>
var set = new Set();
set.add("jQuery");
set.add("AngularJS");
set.add("Bootstrap");
document.writeln("Element present before invoking delete() method: "+ set.has("Bootstrap")+"<br>");
set.delete("Bootstrap");
document.writeln("Element present after invoking delete() method: "+set.has("Bootstrap"));
</script>

Test it Now

Output:

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

Next TopicJavaScript Set entries() Method

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