In this article, we'll be taking a look athow to round a number to an integer (whole number) in JavaScript. JavaScript provides three different methods to achieve this goal: theround()method, theceil()method and thefloor()method.
5 Round a Number Down in JavaScript 6 7 8 9 document.write(Math.floor(3.5) + ""); // Prints: 3 10 document.write(Math.floor(-5.7) + ""); // Prints: -6 11 document.write(Math.floor(9.99) + ""); // Prints: 9 12 document.write(Math.floor(-9.99) + ""); // Prints...
1 <!DOCTYPE html> 2 3 4 5 Round a Number Up in JavaScript 6 7 8 9 document.write(Math.ceil(3.5)+"");// Prints: 4 10 document.write(Math.ceil(-5.7)+"");// Prints: -5 11 document.write(Math.ceil(9.99)+"");// Prints: 10 12 document.write(Math.ceil(-9.99)+""...
相当于 JavaScript Math.round()。 to-zero:将 valueToRound 舍入为 roundingInterval 接近/接近零的最接近整数倍。 这相当于 JavaScript Math.trunc() 方法。 <valueToRound>:需要被四舍五入的值。 必须是<number>、<dimension>或<percentage>,或者解析为这些值之一的数学表达式。 <roundingInterval>:舍入的间隔...
Examples of round() in JavaScript Different examples are mentioned below: Example #1 console.log(Math.round(0.9)); In this example, the function math. Round () has the number 0.9. However, as per the working of the function, it should be rounded off to 1, as 1 is the nearest integer...
So, with the 4.98, it was round down to 4, and the number 17 was left as it is. Summary To round down numbers in JavaScript, we can make use of two static Math method - floor and trunc - which work in different ways but achieve the set goal. References Math.round() - JavaScript...
function round(num) { var m = Number((Math.abs(num) * 100).toPrecision(15)); return Math.round(m) / 100 * Math.sign(num); } console.log(round(1.005)); Output:1.01 Using the Custom Function to Round a Number To 2 Decimal Places in JavaScript...
Create Round Prototype to Round to Two Decimal Places in JavaScript In this post, we will see how to round to 2 decimal places in javascript. Using Math.Round() to Round to 2 Decimal Places in JavaScript You can use Math.round() function to round number to 2 decimal places in javascript...
result as a string, formatted to 2 decimal places. This is different than using JavaScript'sNumber.toFixed()method, which sometimes rounds up and sometimes rounds down (?), orMath.round(), which does things you might not expect, including returning your result in scientific notation, because...
All possible ways to round off a number in JavaScript As I mentioned above, JS also has syntax, variables, and functions, unlike other languages. So, to round off a number to a given number of decimal places, there are multiple ways in JS. Let’s deep dive into this method one by on...