locutus/esm/lua/math/ceil.js

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

export function ceil(x) {
    //      discuss at: https://locutus.io/lua/ceil/
    // parity verified: Lua 5.4
    //     original by: Kevin van Zonneveld (https://kvz.io)
    //          note 1: Returns the smallest integer >= x
    //       example 1: ceil(4.2)
    //       returns 1: 5
    //       example 2: ceil(-0.5)
    //       returns 2: 0
    //       example 3: ceil(3)
    //       returns 3: 3
    const result = Math.ceil(x);
    // Convert -0 to 0 for consistency
    return Object.is(result, -0) ? 0 : result;
}