Created
February 12, 2019 20:21
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JavaScript: Is Fallthrough From Switch Statement A Troublemaker?
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<html> | |
<body> | |
<h1>Message changes depends on the day you got.</h1> | |
<button onclick="changeDay()">Click Me</button> | |
<h3 id="message"></h3> | |
<script> | |
function changeDay() { | |
let text = ''; | |
switch (new Date().getDay()) { | |
case 1: | |
case 2: | |
case 3: | |
default: // default is NOT the last case in the switch block & no break | |
text = "Give my Weekend back 😩"; | |
// supposed to break in here | |
case 4: | |
case 5: | |
text = "Almost Weekend...!! 😎"; // You get this message although your case is 1/2/3 | |
break; | |
case 0: | |
case 6: | |
text = "Weekend!!!! 🤪"; | |
} | |
const message = document.getElementById("message"); | |
message.innerHTML = text; | |
} | |
</script> | |
</body> | |
</html> |
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