locutus/esm/php/array/array_combine.js

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

export function array_combine(keys, values) {
    //  discuss at: https://locutus.io/php/array_combine/
    // original by: Kevin van Zonneveld (https://kvz.io)
    // improved by: Brett Zamir (https://brett-zamir.me)
    //   example 1: array_combine([0,1,2], ['kevin','van','zonneveld'])
    //   returns 1: {0: 'kevin', 1: 'van', 2: 'zonneveld'}
    const newArray = {};
    let i = 0;
    // input sanitation
    // Only accept arrays or array-like objects
    // Require arrays to have a count
    if (typeof keys !== 'object') {
        return false;
    }
    if (typeof values !== 'object') {
        return false;
    }
    if (typeof keys.length !== 'number') {
        return false;
    }
    if (typeof values.length !== 'number') {
        return false;
    }
    if (!keys.length) {
        return false;
    }
    // number of elements does not match
    if (keys.length !== values.length) {
        return false;
    }
    for (i = 0; i < keys.length; i++) {
        const value = values[i];
        if (typeof value === 'undefined') {
            return false;
        }
        newArray[String(keys[i])] = value;
    }
    return newArray;
}