Javascript match case. If there is no match, no code is executed.

Javascript match case If there is no match, no code is executed. This is how it works: The switch expression is evaluated once. Apr 25, 2022 · Conditionals are expressions that resolve into Booleans, and the case should strictly match (===) the value that you passed to your switch. Jul 28, 2025 · The default keyword in a switch statement is used as a fallback option when none of the case labels match the evaluated value. If there is a match, the associated block of code is executed. Jul 8, 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 value of the expression is compared with the values of each case. May 24, 2010 · To ensure that we have a match in a case clause, we will test the original str value (that is provided to the switch statement) against the input property of a successful match. This tutorial shows you how to use the JavaScript switch case statement to evaluate a block based on multiple conditions. Apr 16, 2025 · Learn how to use switch/case statements in JavaScript for conditional logic, with examples and explanations. . In your case, you passed a number: switch(score) , so it's evaluating 75 === true. It functions similarly to an else in an if-else chain, ensuring that a default action is executed when no specific conditions are met. Jul 8, 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.