const month = "march"
switch (month) {
case "jan":
console.log("January");
break;
case "feb":
console.log("feb");
break;
case "march":
console.log("march");
break;
case "april":
console.log("april");
break;
default:
console.log("default case match");
break;
}
//default execute when no key match
Console Output:
march