javascript - How to use CONST when there are multiple conditions

Question

I'm getting on the const train and want to start avoiding let at all costs.

The problem I'm seeing is the below case - how would I use const in a situation with more than 2 forks in a logic tree?

What's the equivalent pattern with const?

function getResult(input) {
    let result;

    switch (input): {
        case (1): { result=x;}
        case (2): { result=y;}
        case (3): { result=x;}
        ...etc
    }

    /*
    ...additional conditionals and functions depending on the outcomes 
    of switch statement
    */    
}

thanks,

Answer 1

There is nothing wrong with using let in this case. Const is useful for creating non changing variables throughout the file, function or class. For example, storing a non changing base url for http calls (https://your.domain.here/).

Whereas let and var are more suited to changing variables such as the amount of time a user clicks on a button, or slider to select a minimum and maximum date/age range.

However, you will want to change your switch statement to a valid statement like so:

switch (input) {
    case 1: {
        result=x;
        break;
    }
    case 2: {
        result=y;
        break;
    }
    case 3: {
        result=x;
        break;
    }
    default:
        break;
}