locutus/esm/rust/str/contains.js

Locutus other languages' standard libraries to JavaScript for fun and educational purposes

export function contains(needle, haystack) {
    //      discuss at: https://locutus.io/rust/contains/
    // parity verified: Rust 1.85
    //     original by: Kevin van Zonneveld (https://kvz.io)
    //       example 1: contains('World', 'Hello World')
    //       returns 1: true
    //       example 2: contains('z', 'Hello World')
    //       returns 2: false
    return String(haystack).includes(String(needle));
}