Question

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

Answer 1

function roundDownToNearest100(num : number) : number {
    return Math.floor(num / 100) * 100;
}

console.log(roundDownToNearest100(222)); 
console.log(roundDownToNearest100(779)); 
console.log(roundDownToNearest100(399.99));
console.log(roundDownToNearest100(55.17)); 
console.log(roundDownToNearest100(3)); 
console.log(roundDownToNearest100(18)); 
console.log(roundDownToNearest100(-14));
console.log(roundDownToNearest100(-1001)); 
console.log(roundDownToNearest100(-1999));

  
  
  
/*
  
run:
  
200 
700 
300 
0 
0 
0 
-100 
-1100 
-2000  
  
*/

 

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