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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.
The JavaScript switch statement performs type checking, ensuring both the value and the type of the expression match the case value. For example, let a = 1; switch (a) { case "1": a = "one (string type)"; break; case 1: a = "one (number type)"; break; case 2: a = "two (number type)"; break; default: a = "not found"; } console.log(`The value of ...
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.
25 lip 2024 · 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.
8 gru 2022 · Na przykład, jeśli chcemy wyświetlić komunikat „Kciuk dla JavaScript” tylko wtedy, gdy zmienna x ma wartość true, to możemy użyć instrukcji warunkowej switch…case w następujący sposób: switch (x) { case true: console.log("Kciuk dla JavaScript"); break; }
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.
6 sie 2021 · 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 statement: The computer will go through the switch statement and check for strict equality === between the case and expression.
