How to Check if String starts with Specific Prefix in JavaScript

How to Check if String starts with Specific Prefix in JavaScript ?

Answer

To check if a string starts with a specific prefix in JavaScript, you can use the 'startsWith' method of the String object.

✐ Examples

1 Check if String contains specific Prefix using 'startsWith' method

In this example,

We create a function 'startsWithPrefix' that takes a string and a prefix as input.
We use the 'startsWith' method of the string object to check if the string starts with the specified prefix.
If the string starts with the prefix, 'true' is returned; otherwise, 'false'.
Finally, we log the result to the console.

JavaScript Program

function startsWithPrefix(str, prefix) {
    return str.startsWith(prefix);
}

let str = 'Hello World';
let prefix = 'Hello';
let startsWith = startsWithPrefix(str, prefix);
console.log(`String starts with prefix '${prefix}': ${startsWith}`);

Output

String starts with prefix 'Hello': true

Summary

In this tutorial, we learned How to Check if String starts with Specific Prefix in JavaScript language with well detailed examples.

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