This tutorial will teach you what JavaScript switch statement is, how to use it and when.Įvery JavaScript switch statement must have three things in order to work. Switch statement can sometimes do a better job and make your code more readable. If none of the cases match, then any code within the `default` block will be executed instead.Switch statement is one of the oldest features of JavaScript. The `break` statement indicates the end of each case and prevents code from being executed in subsequent cases. It evaluates an expression and matches the value to a case clause, executing statements associated with that specific case. The switch statement in JavaScript is a useful tool for performing different actions based on different conditions. If none of the cases match, the `default` block is executed. The `break` statement is used to indicate the end of each case and prevent the execution of the code in the following cases. In this example, the expression `dayNumber` is evaluated, and the code block associated with the matching case (in this case, `case 3`) is executed. Here’s an example using the switch statement: Statements to be executed if none of the cases match the expression Statements to be executed if the expression matches value2 Statements to be executed if the expression matches value1 Here’s the basic syntax for the switch statement in JavaScript: The `switch` statement evaluates an expression, matching the expression’s value to a case clause, and executes statements associated with that specific case. In JavaScript, you can use the switch statement as a way to perform different actions based on different conditions. In this blog post, we’ll discuss the syntax of the switch statement and provide an example of how it works. Are you looking for a way to perform different actions based on certain conditions in JavaScript? The switch statement is an effective tool that can help you do just that.
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