Tips for utilizing a function on an object

I was given a task that involves working with two arrays filled with random strings in Test.data. The goal is to create a single list containing elements alternating between the two arrays.

For example:

a: ['a', 'b', 'c']    
b: ['d', 'e']    
-> ['a', 'd', 'b', 'e', 'c']

Despite my best efforts, the code I attempted only replaced the existing data in Test.data.

Test.data = function arry(a, b) {
const c = [];

for (let i = 0; i < Math.max(a.length, b.length); i++) {
    if (a[i] != undefined) {
        c.push(a[i]);
    }

    if (b[i] != undefined) {
        c.push(b[i]);
    }
}
}

I understand that the issue lies in how I am applying the function to the object, but unfortunately, I am unsure of the correct solution at this time.

Answer №1

Is this the solution you're looking for?

function mergeArrays(a, b) {
    const mergedArray = [];

    for (let i = 0; i < Math.max(a.length, b.length); i++) {
        if (a[i] != undefined) {
            mergedArray.push(a[i]);
        }

        if (b[i] != undefined) {
            mergedArray.push(b[i]);
        }
    }
    
    return mergedArray;
}

let firstArray = ['a', 'b', 'c'];
let secondArray = ['d', 'e'];
Test.result = mergeArrays(firstArray, secondArray);

Answer №2

Your code has been tidied up for better readability

let firstArray = ['apple', 'banana', 'carrot'],
secondArray = ['dog', 'elephant'];

function combineArrays(first, second)
{
    let result = [];

    for (let i = 0; i < Math.max(first.length, second.length); i++)
    {
        if (first[i] !== undefined)
        {
            result.push(first[i]);
        }

        if (second[i] !== undefined)
        {
            result.push(second[i]);
        }
    }
    console.log(result);
}

combineArrays(firstArray, secondArray);

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