Check if String Contains Numbers in JavaScript (Easy Method!).

In this blog you’ll learn how to check if the string contains the numeric value or not using a simple JavaScript method.

You can easily check the string contains a number or numeric value by JavaScript match method with regular expression.

We’ll use the match method with regular expressions for numbers ([0-9]). If a match is found we’ll show output that string contains a number, if a match is not found we show output that the string does not contain a number.

Take a look at the code below:

JavaScript

    // String does not contain a numeric value.
    let string = "hello welcome to maketechstuff.com";

    console.log("String: ", string);

    if (string.match(/[0-9]/g)) {
        console.log("Output: String contain a number");
    } else {
        console.log("Output: String does not contain a number.");
    }

  

Output:

Now let's add number inside a string an see the output.

JavaScript

    // String contain a numeric value.
    let string = "Thanks 4 visiting maketechstuff.com";

    console.log("String: ", string);

    if (string.match(/[0-9]/g)) {
        console.log("Output: String contain a number");
    } else {
        console.log("Output: String does not contain a number.");
    }

  

Output:

So that's how you can check if the string contains the numbers or not using JavaScript. Feel free to leave any questions or suggestions in the comments below.

You may like:

1. How to extract the numbers present in a string using JavaScript.
2. How to remove the numeric values from a string using JavaScript.
3. How to check if string contain the special character using JavaScript.