Search results
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.
The switch statement evaluates an expression, compares its result with case values, and execute the statement associated with the matching case. Use the switch statement rather than a complex if...else...if statement to make the code more readable.
9 kwi 2021 · The JavaScript switch keyword is used to create multiple conditional statements, allowing you to execute different code blocks based on different conditions. The code below shows you a switch statement in action: var score = 20; switch(age){ case 10: console.log("Score value is 10"); break; case 20:
22 sie 2024 · The JavaScript switch statement evaluates an expression and executes a block of code based on matching cases. It provides an alternative to long if-else chains, improving readability and maintainability, especially when handling multiple conditional branches.
6 sie 2021 · Example of Switch Statements in JavaScript. In this example, we are comparing "oboe" to the cases. "oboe" would match the third case clause and would print to the console "I play the oboe". switch ("oboe") { case "trumpet": . console.log("I play the trumpet"); break; case "flute": .
Use switch to select one of many blocks of code to be executed. This is the perfect solution for long, nested if/else statements. The switch statement evaluates an expression. The value of the expression is then compared with the values of each case in the structure.
