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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.
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.
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.
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:
6 sie 2021 · In this article, I'll explain what switch statements are and how they work. I'll also help you figure out if they're a good option to use in your code. What is a Switch Statement? In programming, a switch statement is a control-flow statement that tests the value of an expression against multiple cases. This is the basic syntax for a switch ...
The switch statement evaluates an expression, compares its results with case values, and executes the statement associated with the matching case value. The following illustrates the syntax of the switch statement: switch (expression) {. case value1: statement1; break; case value2: statement2; break;
