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Comparison Operator

OPERATOR DESCRIPTION
== Equal to a==b
=== Equal Vlaue and equal type Data type must be equal
!= Not Equal
!== Not equal value or not equal type
> greater than
< Less than
>= Greater than or equal to
<= less than or equal to 
<script>
var a = 9;
var b = "10";
document.write(a<=b);
</script>

 

<script>
var a = null;
var b = undefined;

document.write(a === b);
</script>

 

<script>
var a = 10;
var b = 13;

document.write(a !== b);
</script>