Javascript Switch
In JavaScript, the switch statement is used to perform different actions based on different conditions. It provides a way to select one of many code blocks to be executed.
Syntax:-
Let’s see the simple example of switch statement in javascript.
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Right now it is not checking the condition mentioned in the switch statement, it is only executing the last statement. To overcome this situation, we have a break
keyword.
Break keyword
The break
keyword is used to exit the execution inside a switch block. It allows you to stop the execution of code within a specific case and prevents fall-through to the next case.
It's important to note that the break
statement is not required for the last case in a switch block. The block naturally ends there, so the break
statement is not necessary.
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Output:-
Default keyword
If no case is matched from the given switch conditions, the control falls to a default statement to be executed.
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Grouping of cases
Multiple cases that have the same code can be grouped together in JavaScript. This allows you to specify a single block of code to be executed for multiple case values. By omitting the break
statement after each case, the execution will flow through to the next case.
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Output:-