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ES6 - Number.isFinite
Determines whether the passed value is a finite number. Returns true/false.
Syntax
The syntax mentioned below if for Number.isFinite, where, value has to be tested for finiteness.
let res = Number.isFinite(value);
Example
<script> console.log(Number.isFinite(Infinity))//false console.log(Number.isFinite(-Infinity))//false console.log(Number.isFinite(NaN))//false console.log(Number.isFinite(123))//true console.log(Number.isFinite('123')) // evaluates to false console.log(isFinite('123')) // evaluates to true,global function </script>
The output of the above code will be as follows −
false false false true false true
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