Challenge: Iterate Through an Array with a For Loop
A common task in Javascript is to iterate through the contents of an array. One way to do that is with a for
loop. This code will output each element of the array arr
to the console:
var arr = [10,9,8,7,6];
for (var i=0; i < arr.length; i++) {
console.log(arr[i]);
}
Remember that Arrays have zero-based numbering, which means the last index of the array is length - 1. Our condition
for this loop is i < arr.length, which stops when i is at length - 1.