How to use switch case in Javascript with example: Servicenow

[Pashya1]

Hello all,

Use the switch statement to select one of many code blocks to be executed.

This is how it works:

• The switch expression is evaluated once.
• The value of the expression is compared with the values of each case.
• If there is a match, the associated block of code is executed.
• If there is no match, the default code block is executed.

Note: The default keyword specifies the code to run if there is no case match. The default case does not have to be the last case in a switch block

 Example

The getDay(): the method returns the weekday as a number between 0 and 6.

(e.g. Sunday=0, Monday=1, Tuesday=2 ..)

This example uses the weekday number to calculate the weekday name:

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var day = '';

var dayNr = new Date().getDay();

switch (dayNr) {

case 0:

day = "Sunday";

break;

case 1:

day = "Monday";

break;

case 2:

day = "Tuesday";

break;

case 3:

day = "Wednesday";

break;

case 4:

day = "Thursday";

break;

case 5:

day = "Friday";

break;

case 6:

day = "Saturday";

break; 

default:

day = "Unknown!";

}

gs.info("Today is " + day);

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The result will be:

Today is Tuesday

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