Can anyone give a good example for javascript switch or switch statements?

Question

I am a bit confused about switch statements and how to use them in my codes, any practical example?

Answer 1

All you need is here: https://www.w3schools.com/js/js_switch.asp

Answer 2

let arg = prompt("Enter a value");
switch(arg) {
case '0':
case '1':
alert('One or zero');
case '2':
alert('Two');
break;
case 3:
alert('Never executes!');
default:
alert('An unknown value')
}
Equality check is always strict. The values must be of the same type to match.
For 0, 1, the first alert runs.
For 2 the second alert runs.
But for 3, the result of the prompt is a string "3", which is not strictly equal === to the number 3. So we've got a dead code in case 3! The default variant will execute.