round (JavaScript)

Rounds a number to the nearest integer.

Defined in

Math (JavaScript)

Syntax

round(value:double) : double
Parameter Description
value A number. See below for special cases.
Return value Description
double The number rounded to the nearest integer, or to the nearest higher integer if the fraction is 0.5..

Usage

Special cases are as follows:
  • Rounding NaN results in NaN.
  • Rounding +Infinity results in positive infinity.
  • Rounding -Infinity results in negative infinity.
  • Rounding Number.MIN_VALUE or a lesser number results in zero.
  • Rounding Number.MAX_VALUE or a greater number results in the maximum numeric value.

Examples

This edit box onblur event rounds the value of a numeric field.
sessionScope.n = Math.round(sessionScope.n)