This content originally appeared on DEV Community and was authored by Jenuel Oras Ganawed
When checking string if its a number, there are a lot of ways you can check a string if its a number. You can use regex, isNaN() function, or a plus operator, or parseInt.
But the best function that we can use is a function called Number().
The Number() function converts the argument to a number representing the object’s value. If it fails to convert the value to a number, it returns NaN.
We can use it with strings also to check whether a given string is a number or not.
console.log(Number('195')) // 195
console.log(Number('boo')) // Nan
This content originally appeared on DEV Community and was authored by Jenuel Oras Ganawed
Jenuel Oras Ganawed | Sciencx (2022-02-22T00:43:53+00:00) Check String If its a number. Retrieved from https://www.scien.cx/2022/02/22/check-string-if-its-a-number/
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