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JavaScript switch
Control the flow of your application by matching expressions against multiple cases.
logic.js
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Tutor:The switch statement evaluates an expression and matches it against multiple 'case' values. It's often cleaner than multiple if/else statements.
Mastering the Switch
Syntax Overview
The switch expression is compared with the values of each case. If there is a match, the associated block of code is executed.
- • Use break to prevent "fall-through".
- • Use default for non-matching results.
- • Comparison is strict (===).
// Pro Tip
switch (role) {
case 'admin':
grantFullAccess();
break;
default:
restrictAccess();
}
Your Progress
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Logic Architect
Create a functional switch statement with cases.
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Safety First
Understand the importance of the default case.
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Break Control
Master the break keyword to prevent fall-through.