[Javascript] What is the best way to check whether a string contains a substring?

Question

I want to check whether substring is present in a given string? What is the best way to do that in Javascript?

Meera · Accepted Answer

You can use either `indexOf()` or `includes` to check if a substring is present in a given string.

```js
let str = 'this is a test message';

let substring = 'test'

console.log(str.includes('test'));

console.log(str.indexOf('test') > 0);

```

Run here [https://onecompiler.com/javascript/3xns8xfgc](https://onecompiler.com/javascript/3xns8xfgc)

1 Answer