switch(true) gotcha

I discovered this week a little footgun if you happen to use this bit of syntactic sugar:

    
const object = {
    foo: 'bar',
}

switch (true) {
    case object && object.foo: {
        // This will never execute
    }

    default:
        // ...
}

  

The cases in your switch(true) must actually return true, not truthy, for the case to execute.

Using switch(true) is a bit of a controversial coding practice, since it's only meant to replace long if..else if..else chains. Literally has no additional utility except aesthetics... but I like it nevertheless :joy_cat: