Question

How to round a number down to the nearest 10 in TypeScript

Answer 1

function roundDownToNearest10(num : number) : any {
  	return Math.floor(num / 10) * 10;
}

console.log(roundDownToNearest10(22)); 
console.log(roundDownToNearest10(79)); 
console.log(roundDownToNearest10(399.99));
console.log(roundDownToNearest10(5.17)); 
console.log(roundDownToNearest10(3)); 
console.log(roundDownToNearest10(18)); 
console.log(roundDownToNearest10(-14));
console.log(roundDownToNearest10(-1001)); 
console.log(roundDownToNearest10(-1009));

  
  
  
/*
  
run:
  
20 
70 
390 
0 
0 
10 
-20 
-1010 
-1010 
  
*/

 

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