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The JavaScript switch statement executes different blocks of code based on the value of a given expression. In this tutorial, you will learn about the JavaScript switch statement with the help of examples.
The JavaScript Switch Statement. Use the switch statement to select one of many code blocks to be executed. Syntax. switch (expression) { case x: // code block. break; case y: // code block. break; default: // code block. } This is how it works: The switch expression is evaluated once.
Let's first look at a simple example of the switch statement and then we will its syntax and how to use it. Example let num = 2; switch(num) { case 1: console.log('one'); break; case 2: console.log('two'); break; case 3: console.log('three'); break; default: console.log('default'); }
8 sie 2024 · In this JavaScript tutorial, we'll explore all the facets of Switch Statements in JavaScript, including syntax, examples, flowchart of switch statement, nested switch case, if...else vs. switch statement in JavaScript, etc.
9 gru 2021 · The switch statement is another form of conditional logic in JavaScript. In this chapter we will cover the syntax of the switch statements as well as how it differs from the if statement and when to use which.
The switch statement evaluates an expression and executes the corresponding body that matches the expression's result. The syntax of the switch statement is: switch(variable/expression) { case value1: . // body of case 1 break; case value2: . // body of case 2 break; case valueN: // body of case N. break; default: // body of default. }
27 mar 2024 · Understanding the Switch Statement. At its core, the switch statement evaluates an expression once and compares the result against a series of case values. Upon finding a match, the code...
