The JavaScript switch...case statement executes different blocks of code based on the value of a given expression. Here's a simple example of the switch...case statement. You can read the rest of the tutorial for more. let message = "" switch (trafficLight) { case "red": message = "Stop immediately."; break; case "yellow":

How can I use a condition inside a switch statement for JavaScript? In the example below, a case should match when the variable liCount is <= 5 and > 0; however, my code does not work: case 0: setLayoutState("start"); var api = $("#UploadList").data("jsp"); api.reinitialise(); break; case liCount <= 5 && liCount > 0: setLayoutState("upload1Row");

Use the switch statement to select one of many code blocks to be executed. This is how it works: The switch expression is evaluated once. The value of the expression is compared with the values of each case. If there is a match, the associated block of code is executed. If there is no match, the default code block is executed.

Mar 13, 2025 · The switch statement evaluates an expression, matching the expression's value against a series of case clauses, and executes statements after the first case clause with a matching value, until a break statement is encountered. The default clause of a switch statement will be jumped to if no case matches the expression's value.

Aug 8, 2021 · Use the fall-through feature of the switch statement. A matched case will run until a break (or the end of the switch statement) is found, so you could write it like: switch (varName) { case "afshin": case "saeed": case "larry": alert('Hey'); break; default: alert('Default case'); }

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.

Apr 16, 2017 · switch (settings.xxx) { case 'case1': Execute some code break; case 'case2': Execute some code break; case 'case3': Execute some code break; } For each case, I have quite a lot of code that's partly repeated because some properties are common to the 3 cases.

Apr 9, 2021 · Creating conditionals to decide what action to perform is one of the most fundamental parts of programming in JavaScript. This tutorial will help you learn how to create multiple conditionals using the switch keyword.

May 19, 2024 · The Switch Case statement in JavaScript is your go-to decision-maker when you have multiple conditions to evaluate. Its simplicity and readability make it an excellent choice for scenarios involving a variable with various possible values.

Jan 8, 2025 · In this article, we’ll explore the basics of the JavaScript switch case statement and provide step-by-step examples to help you master it. The basic syntax of the JavaScript switch case statement is as follows: case value1: // code to execute if expression equals value1. break; case value2: // code to execute if expression equals value2. break;