I am trying to form a new array in javascript that consists of two 1 dimentional arrays (of the same length).
var A = [1,2,3];
var B = [20, 10, 30];
and I want to create C:
C = [[1,20],[2,10],[3,30]];
This seems like a fairly simple problem. I am wondering if there is a function I can use for this (to avoid loops). Perhaps something with array.from or map? I am having some trouble figuring out how that would work exactly.
You can try following
var A = [1, 2, 3];
var B = [20, 10, 30];
var C = A.map(function(item, index) {
return [item, B[index]]
});
console.log(C);For the same length array we can use map function - Nikhil's Answer
I am just providing more information if both array's are of different lengths.
function mixArray(a, b) {
if (a.length < b.length) {
var j = Array(b.length-a.length).fill('');
a = a.concat(j);
}
return a.map(function(item, index) {
var tempArr = [];
if (item !== '') {
tempArr.push(item);
}
if (b[index] !== undefined) {
tempArr.push(b[index]);
}
return tempArr;
});
}
Inputs
var a = [1, 2, 3, 7, 8, 9];
var b = [20, 10, 30, 5];
console.log(mixArray(a,b)); // [[1, 20], [2, 10], [3, 30], [7, 5], [8], [9]]
var a = [1, 2];
var b = [20, 10, 30, 5];
console.log(mixArray(a,b)); // [[1, 20], [2, 10], [30], [5]]
Hope this helps ! Thanks Demo : https://jsbin.com/dusuna/edit?html,js,console
