In the example above, if the second break was omitted the text “ Today only, 3 + 1 free!!” would have also been printed to the console. The break statement that follows stops the procedure if omitted, the program will continue to execute the following statements until it encounters either the next break statement or the end of the switch statement. This results in “ The fourth item is free!!” being printed to the console. In the example above while case 2 has no associated code defined, the code in case 1 is executed as it occurs after the matching case has been encountered. This results in the following code being executed until a break statement is encountered. Since these two values are not equal, the statement switchesto the next case, where the value is equal (2).

The switch statement begins with the top condition, checking numOfItems against the value 3. Conditions are defined using the case keyword. The switch statement uses the strict equality operator ( =) to evaluate each condition in turn.

In the example above, const numOfItems represents the number of items in a user’s cart, two items in this case.

Expected output: The fourth item is free!! It will either execute the code for a matching case, or an optional default code if no matches are found.īelow is a basic switch statement example: const numOfItems = 2 Ĭonsole.log('The fourth item is free!!') The switch statement matches an expression’s value to cases by order. They are similar to using if…else statements to handle multiple alternative outcomes in the code. Switch statements are used when you want different actions or results to occur for different situations. It will execute a code block if a certain condition is met. A switch statement is a form of a conditional statement.

Javascript case statement