Question

How to loop through an array backward in TypeScript

Answer 1

const arr = [4, 8, 1, 0, 9, 7, 5];
  
for (let i = arr.length - 1; i >= 0; i--) {
    console.log(arr[i]);
}
 
    
         
         
/*
run:

5         
7
9
0
1
8
4
         
*/

 

70+ SQL courses for beginners and professionals

Answer 2

const arr = [4, 8, 1, 0, 9, 7, 5];
  
arr.slice().reverse()
   .forEach(function(item) {
            console.log(item);
        });
 
    
         
         
/*
run:

5         
7
9
0
1
8
4
         
*/

 

70+ SQL courses for beginners and professionals