Merge two array - Node.js Array

Node.js examples for Array:Merge

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Description

Merge two array

Demo Code


exports.merge = function (target, source) {

    if (!source) {
        return target;
    }//  w  w w.j  a v a2 s  . co m

    if (typeof source !== 'object') {
        if (Array.isArray(target)) {
            target.push(source);
        }
        else {
            target[source] = true;
        }

        return target;
    }

    if (typeof target !== 'object') {
        target = [target].concat(source);
        return target;
    }

    if (Array.isArray(target) &&
        !Array.isArray(source)) {

        target = exports.arrayToObject(target);
    }

    var keys = Object.keys(source);
    for (var k = 0, kl = keys.length; k < kl; ++k) {
        var key = keys[k];
        var value = source[key];

        if (!target[key]) {
            target[key] = value;
        }
        else {
            target[key] = exports.merge(target[key], value);
        }
    }

    return target;
};

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