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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.
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.
17 cze 2013 · As shown by LightStyle, you can list each case explicitly: switch(myInterval){ case 0: case 1: case 2: doStuffWithFirstRange(); break; case 3: case 4: case 5: doStuffWithSecondRange(); break; case 6: case 7: doStuffWithThirdRange(); break; default: doStuffWithAllOthers(); }
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.
switch (expr) {. case 'Oranges': console.log ('Oranges are $0.59 a pound.'); break; case 'Mangoes': case 'Papayas': console.log ('Mangoes and papayas are $2.79 a pound.'); // Expected output: "Mangoes and papayas are $2.79 a pound." break;
14 kwi 2015 · 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 the result of expression matches value2 [break
25 kwi 2022 · 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: