locutus/esm/python/math/isinf.js

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

export function isinf(x) {
    //      discuss at: https://locutus.io/python/isinf/
    // parity verified: Python 3.12
    //     original by: Kevin van Zonneveld (https://kvz.io)
    //          note 1: Returns True if x is positive or negative infinity
    //       example 1: isinf(Infinity)
    //       returns 1: true
    //       example 2: isinf(-Infinity)
    //       returns 2: true
    //       example 3: isinf(42)
    //       returns 3: false
    return x === Infinity || x === -Infinity;
}