Question

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

Answer 1

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

console.log(roundUpOrDowntoNearest100(222)); 
console.log(roundUpOrDowntoNearest100(779)); 
console.log(roundUpOrDowntoNearest100(399.99));
console.log(roundUpOrDowntoNearest100(55.17)); 
console.log(roundUpOrDowntoNearest100(3)); 
console.log(roundUpOrDowntoNearest100(18)); 
console.log(roundUpOrDowntoNearest100(-14));
console.log(roundUpOrDowntoNearest100(-1001)); 
console.log(roundUpOrDowntoNearest100(-1999));

  
  
  
/*
  
run:
  
200 
800 
400 
100 
0 
0 
0 
-1000 
-2000 
  
*/

 

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