Question

How to round a number down to the nearest 10 in Node.js

Answer 1

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

console.log(roundDownToNearest10(73)); 
console.log(roundDownToNearest10(89)); 
console.log(roundDownToNearest10(999.99));
console.log(roundDownToNearest10(9.197)); 
console.log(roundDownToNearest10(6)); 
console.log(roundDownToNearest10(16)); 
console.log(roundDownToNearest10(-18));
console.log(roundDownToNearest10(-103)); 
console.log(roundDownToNearest10(-109));

  
  
  
  
/*
  
run:
  
70
80
990
0
0
10
-20
-110
-110
  
*/

 

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