Question

How to round to 2 decimal places in TypeScript

Answer 1

let num: number = 82.4780;
let rounded: string = num.toFixed(2);
console.log(rounded);
 
num = 82.6780;
rounded = num.toFixed(2);
console.log(rounded);
 
 
 
/*
run:
 
"82.48" 
"82.68" 
 
*/

 

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Answer 2

let num: number = 82.4780;
let rounded: number = parseFloat(num.toFixed(2));
console.log(rounded);
 
num = 82.6780;
rounded = parseFloat(num.toFixed(2));
console.log(rounded);
 
 
 
/*
run:
 
82.48 
82.68 
 
*/

 

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Answer 3

let strNum: string = "82.4780";
let rounded: string = parseFloat(strNum).toFixed(2);
console.log(rounded);
 
strNum = "82.6780";
rounded = parseFloat(strNum).toFixed(2);
console.log(rounded);
 
 
 
/*
run:
 
"82.48" 
"82.68" 
 
*/

 

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Answer 4

function formatToTwoDecimals(num: number): number {
    return Math.round(num * 100) / 100;
}
 
let num: number = 82.4780;
let rounded: number = formatToTwoDecimals(num);
console.log(rounded);
 
num = 82.6780;
rounded = formatToTwoDecimals(num);
console.log(rounded);
 
 
 
/*
run:
 
82.48 
82.68
 
*/

 

70+ SQL courses for beginners and professionals