What are the differences between switch-case and if-else statements?

What are the differences between switch-case and if-else statements?

Switch-case and if-else are both control flow statements used to execute different blocks of code based on conditions. The main difference is that switch-case is generally used for discrete values, while if-else can handle ranges and complex conditions.

When should I use switch-case instead of if-else?

You should use switch-case when you have multiple discrete values to compare against a single variable, as it can be more readable and efficient in such cases.

Are there any performance differences between the two?

Yes, in some cases, switch-case can be more efficient than if-else, especially when dealing with many conditions, as it can be optimized by the compiler.

Can you give me an example of both?

Sure! For if-else:

if (x === 1) {
    console.log('One');
} else if (x === 2) {
    console.log('Two');
} else {
    console.log('Other');
}

For switch-case:

switch (x) {
    case 1:
        console.log('One');
        break;
    case 2:
        console.log('Two');
        break;
    default:
        console.log('Other');
}