@ce1pers/array-helpers/dist/src/merger.js

Included simple array helpers.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.objectArrayMerger = void 0;
/**
 * Merges object arrays into one array using the provided 'mergeBy'
 *
 * @throws {Error} - Throws an error if the length of the arrays are not equal.
 * @throws {Error} - Throws an error if the provided merge key does not exist.
 */
const objectArrayMerger = ({ arrays, mergeBy, }) => {
    try {
        // Does not same array length.
        const referenceLength = arrays.at(0).length;
        for (let i = 1; i < arrays.length; i += 1) {
            if (arrays[i].length !== referenceLength)
                throw new Error("Arrays length does not equal.");
        }
        // Have a mergeBy into each array?
        const hasMergeKey = arrays.every((array) => array.every((item) => mergeBy in item));
        if (!hasMergeKey)
            throw new Error(`Merge key '${mergeBy}' does not exist in all arrays.`);
        // Defined result as variable.
        const result = [];
        // Merging text from each array.
        for (let i = 0; i < referenceLength; i += 1) {
            const mergedTextArray = [];
            for (let j = 0; j < arrays.length; j += 1) {
                mergedTextArray.push(arrays.at(j).at(i)[mergeBy]);
            }
            result.push(mergedTextArray);
        }
        return result;
    }
    catch (err) {
        console.warn(err.message);
        return [];
    }
};
exports.objectArrayMerger = objectArrayMerger;