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The JavaScript Math.round() method rounds a number to the nearest integer. It rounds up for decimal values of 0.5 and higher, and down otherwise.
Syntax:
Math.round(value);Parameters:
- value: It is the number that you want to round off.
Return Value:
The Math.round() method returns the value of the given number rounded to the nearest integer.
Example 1: To round off a number to its nearest integer.
let round =Math.round(-5.8);
console.log("Number after rounding : " + round);
Output
Number after rounding : -6
Example 2: The Math.round() method itself rounds off a negative number when passed as a parameter to it. To round off a negative number to its nearest integer, the Math.round() method should be implemented in the following way:
let round =Math.round(-5.8);
console.log("Number after rounding : " + round);
Output
Number after rounding : -6
Example 3: The below program shows the result of the Math.round() method when the parameter has ".5" in decimal.
let round =Math.round(-12.5);
console.log("Number after rounding : " + round);
let round1 =Math.round(12.51);
console.log("Number after rounding : " + round1);
Output
Number after rounding : -12 Number after rounding : 13
We have a complete list of Javascript Math Objects methods, to check those please go through this Javascript Math Object Complete reference article.
