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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.
Nov 12, 2023 · 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.
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.
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. A switch statement can replace multiple if checks. It gives a more descriptive way to compare a value with multiple variants. The syntax. The switch has one or more case blocks and an optional default. It looks like this:
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 ;
2 days ago · The switch statement is one of JavaScript's most basic decision-making tools. It helps you check multiple conditions in a single block of statements. 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.
Jun 20, 2017 · The switch statement evaluates an expression, matching the expression's value to a case clause, and executes statements associated with that case. Syntax. switch (expression) { case value1: //Statements executed when the result of expression matches value1. [break;] case value2: //Statements executed when the result of expression matches value2.
JavaScript switch. The switch is a conditional statement like if statement. Switch is useful when you want to execute one of the multiple code blocks based on the return value of a specified expression. Syntax: switch (expression or literal value){ case 1: //code to be executed. break ; case 2: //code to be executed. break ; case n:
Jul 24, 2021 · The switch statement evaluates an expression and allows different blocks of code to execute depending on the result of that expression. It contains any number of case clauses marking code to execute based on values returned by the expression, and an optional default statement marking code that executes if none of the case clauses are true.
