Question

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

Answer 1

function roundUpOrDowntoNearest10(num) {
    return Math.round(num / 10) * 10;
}
 
console.log(roundUpOrDowntoNearest10(73)); 
console.log(roundUpOrDowntoNearest10(89)); 
console.log(roundUpOrDowntoNearest10(81)); 
console.log(roundUpOrDowntoNearest10(99.99));
console.log(roundUpOrDowntoNearest10(9.197)); 
console.log(roundUpOrDowntoNearest10(6)); 
console.log(roundUpOrDowntoNearest10(15)); 
console.log(roundUpOrDowntoNearest10(-19)); 
console.log(roundUpOrDowntoNearest10(-103)); 
console.log(roundUpOrDowntoNearest10(-109));

   
   
   
   
/*
   
run:
   
70
90
80
100
10
10
20
-20
-100
-110
   
*/

 

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