CoffeeScript - Conditions - unless...else statement - CoffeeScript

Just like the if else statement, we also have an unless else statement in CoffeeScript. It contains a Boolean expression, an unless block, and an else block. If the given expression is false, the unless block is executed and if it is true, the else block is executed.

Syntax

Given below is the syntax of the unless else statement in CoffeeScript.

Flow Diagram

unless else statement

Example

The following example demonstrates the usage of unless-else statement in CoffeeScript. Save this code in a file with the name unless_else_example.coffee

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

On compiling, it gives you the following JavaScript.

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

On executing, the CoffeeScript file produces the following output.


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