Question

How to round a number up or down to the nearest 100 in Node.js

Answer 1

function roundUpOrDowntoNearest100(num) {
    return Math.round(num / 100) * 100;
}
 
console.log(roundUpOrDowntoNearest100(773)); 
console.log(roundUpOrDowntoNearest100(899)); 
console.log(roundUpOrDowntoNearest100(999.99));
console.log(roundUpOrDowntoNearest100(99.197)); 
console.log(roundUpOrDowntoNearest100(6)); 
console.log(roundUpOrDowntoNearest100(15)); 
console.log(roundUpOrDowntoNearest100(-19)); // -0 == 0
console.log(roundUpOrDowntoNearest100(-103)); 
console.log(roundUpOrDowntoNearest100(-199));

   
   
   
   
/*
   
run:
   
800
900
1000
100
0
0
-0
-100
-200
   
*/

 

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