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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 executes a block of code depending on different cases. The switch statement is a part of JavaScript's "Conditional" Statements, which are used to perform different actions based on different conditions. Use switch to select one of many blocks of code to be executed.
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 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;
25 kwi 2022 · The syntax. The switch has one or more case blocks and an optional default. It looks like this: switch(x) { case 'value1': // if (x === 'value1') ... [break] case 'value2': // if (x === 'value2') ... [break] default: ... [break] }
22 sie 2024 · In JavaScript, a switch statement is a control flow statement that evaluates an expression and executes code based on matching cases. It provides a more concise and readable way to handle multiple possible conditions compared to nested if...else statements. Syntax:switch (expression) { case value1: // code block to be executed if expression matches
In this tutorial you will learn how to use the switch...case statement to test or evaluate an expression with different values in JavaScript. Using the Switch...Case Statement. The switch..case statement is an alternative to the if...else if...else statement, which does almost the same thing.
