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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.
Exercise: Create a switch statement that will alert "Hello" if fruits is "banana", and "Welcome" if fruits is "apple". @ (6) (fruits) { @ (4) "Banana": alert ("Hello") break; @ (4) "Apple": alert ("Welcome") break; }
JS Switch - Exercise 1. Generate a switch statement, which will alert “Hi” in case vegetables is “Carrot”, and “Welcome” if vegetables is “Broccoli”.
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.
For some variable x, the switch statement in JavaScript has the following syntax. switch (x) { case option1: // code that is executed when "x === option1" is true break; case option2: // code that is executed when "x === option2" is true break; default: // code that is executed when x does not equal any of the // options }
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;
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.
