I am looking for a way to iterate through multiple arrays, for example:
array1 = [ "1", "2", "3" ];
array2 = [ "a", "b", "c" ];
array3 = [ "apples", "bananas", "cheese" ];
I want to combine them into new arrays based on their index positions like this:
result1 = [ "1", "a", "apples" ];
result2 = [ "2", "b", "bananas" ];
result3 = [ "3", "c", "cheese" ];
Any suggestions would be greatly appreciated. Thank you!
Combine the arrays into a temporary array, then reassign them to their original variables (see fiddle):
var numbers = [ 1, 2, 3 ];
var letters = [ "a", "b", "c" ];
var words = [ "apple", "banana", "cherry" ];
var tempArray = numbers.map(function(num, index) {
return [num, letters[index], words[index]];
});
numbers = tempArray[0];
letters = tempArray[1];
words = tempArray[2];
To accommodate arrays of varying lengths, you can simply add another array like array4, or use arrays with different lengths:
var array1 = ["1", "2", "3"],
array2 = ["a", "b", "c"],
array3 = ["apples", "bananas", "cheese"],
result = [array1, array2, array3].reduce(function (r, a) {
a.forEach(function (b, j) {
!(j in r) && r.push([]);
r[j].push(b);
});
return r;
}, []);
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