CoffeeScript Math - round()

Description

The round() method accepts a number and returns the value of a number rounded to the nearest integer

Syntax

Given below is the syntax of round() method of JavaScript. We can use the same method in the CoffeeScript code.

Math.round ( x )

Example

The following example demonstrates the usage of the round() method in CoffeeScript. Save this code in a file with name math_round.coffee.

value = Math.round 0.5
console.log "The nearest integer to 0.5 is : " + value 

value = Math.round 20.7
console.log "The nearest integer to 20.7 is : " + value 
         
value = Math.round -20.3
console.log "The nearest integer to -20.3 is : " + value 

Open the command prompt and compile the .coffee file as shown below.

c:\> coffee -c math_round.coffee

On compiling, it gives you the following JavaScript.

// Generated by CoffeeScript 1.10.0
(function() {
  var value;

  value = Math.round(0.5);

  console.log("The nearest integer to 0.5 is : " + value);

  value = Math.round(20.7);

  console.log("The nearest integer to 20.7 is : " + value);

  value = Math.round(-20.3);

  console.log("The nearest integer to -20.3 is : " + value);

}).call(this);

Now, open the command prompt again, and run the CoffeeScript file as shown below.

c:\> coffee math_round.coffee

On executing, the CoffeeScript file produces the following output.

The nearest integer to 0.5 is : 1
The nearest integer to 20.7 is : 21
The nearest integer to -20.3 is : -20