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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.
- Switch
Use switch to select one of many blocks of code to be...
- Switch
25 lip 2024 · Learn how to use the switch statement in JavaScript to evaluate an expression and execute different blocks of code depending on the value. See the syntax, description, examples, and tips for breaking and fall-through in switch statements.
8 gru 2022 · W JavaScript, instrukcja switch...case jest instrukcją warunkową, która testuje wartość wyrażenia w stosunku do wielu różnych przypadków. Zobacz przykłady.
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.
8 sie 2021 · You can give an indication of what the multiple cases are by using a suitable name inside your find function. switch (varName) { case ["afshin", "saeed", "larry"].find(firstName => firstName === varName): alert('Hey'); break; default: alert('Default case'); break; }
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;
20 cze 2017 · The switch statement evaluates an expression, matching the expression's value to a case clause, and executes statements associated with that case.
