I would like to join the values of 2 equal sized arrays and build a 3rd array similar to desired array below. Please advice as i am unable to find a javascript built-in method for this. The purpose of building this array is to create an array of custom primary keys.
const array1 = ['a', 'b', 'c'];
const array2 = ['d', 'e', 'f'];
Desired array3 = ['ad', 'be', 'cf']
Something like this should work:
const array1 = ['a', 'b', 'c']
const array2 = ['d', 'e', 'f']
const array3 = array1.map((it, i) => it + array2[i])
console.log(array3)The above will map each item in the first array, adding the item at the same index from the second one.
You can try a basic for loop:
const array1 = ['a', 'b', 'c'];
const array2 = ['d', 'e', 'f'];
const final = []
for (let i = 0; i < array1.length; i++) {
const curr1 = array1[i];
const curr2 = array2[i];
final.push(`${curr1}${curr2}`)
}
console.log(final)Or a one liner:
const array1 = ['a', 'b', 'c'];
const array2 = ['d', 'e', 'f'];
const final = array1.map((val, index) => array1[index] + array2[index])
