Question

How to round a number up or down to the nearest 100 in JavaScript

Answer 1

function roundUpOrDowntoNearest100(num) {
  	return Math.round(num / 100) * 100;
}

console.log(roundUpOrDowntoNearest100(33)); 
console.log(roundUpOrDowntoNearest100(159)); 
console.log(roundUpOrDowntoNearest100(599.99));
console.log(roundUpOrDowntoNearest100(43.14)); 
console.log(roundUpOrDowntoNearest100(25)); 
console.log(roundUpOrDowntoNearest100(419)); 
console.log(roundUpOrDowntoNearest100(-12));
console.log(roundUpOrDowntoNearest100(-101)); 
console.log(roundUpOrDowntoNearest100(-199));
 
   
   
   
/*
   
run:
   
0
200
600
0
0
400
0
-100
-200
   
*/

 

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