What is the best way to calculate the product of decimal numbers within a TypeScript Number variable?

Imagine you have a number, for example 288.65, and you want to multiply it without the decimal point in order to obtain the result of 28865.

However, when attempting to achieve this by using console.log(288.65 * 100), the output is not as expected, showing 28864.999999999996. I am uncertain about why this discrepancy occurs, any assistance would be greatly valued.

Answer №1

If you're looking to manipulate numbers in JavaScript, consider using Math.ceil alongside Math.round

The Math.ceil() function will always round a number up to the next largest integer.

On the other hand, Math.round() will return the value of a number rounded to the nearest integer.

const exampleNum = 288.65;

const roundedResult = Math.round(exampleNum * 100);
const ceilResult = Math.ceil(exampleNum * 100);

console.log(roundedResult);
console.log(ceilResult);

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