How to Include ".00" When Calculating Dollar Amount Totals Using Math.js

When working with my MongoDB and Node backend, I need to calculate total dollar amounts and send that information to the front end. It's important to note that I am only displaying totals and not making any changes to the values themselves. To ensure that the totaled dollar values show up with two decimal places, I use the following code snippet:

let roundedTotalOpenBalance = math.round(totalOpenBalance, 2);

This code will provide me with a result like -- 322.45 -- which is exactly what I'm looking for.

However, in cases where the total value is 322, I would like to display it on the front end as 322.00. Is there a way to achieve this using math.js? Or should I handle the transformation manually?

javascriptmath.js

Answer №1

Forget about using Math.round() and experiment with toFixed()

let value1 = 322.45;
let roundedValue1 = value1.toFixed(2);
console.log(roundedValue1);

let value2 = 322; 
let roundedValue2 = value2.toFixed(2); 
console.log(roundedValue2);

Answer №2

If you want to round the total open balance to 2 decimal places, you can use 

roundedTotalOpenBalance.toFixed(2)
.

For more information on the toFixed method in JavaScript, check out this link.

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