Question

How to keep only none falsy numbers in an array with TypeScript

Answer 1

let array: (string | number | null | undefined)[] = [7, 8, null, "typescript", "", undefined, 9, , , undefined, 0, , 8, 1.02, 30];
   
array = array.filter(Number) 
  
console.log(array);
      
      
      
/*
run:
      
[7, 8, 9, 8, 1.02, 30] 
      
*/

 

70+ SQL courses for beginners and professionals