The problem is how do you know what the piece of data that is invalid age or username or something (you need to have additional code). And what if you want to throw custom error message for each case?
Array in JS is also weird (if you dont know the spec of map or using Typescript)
a=[].map(v=>v.v.v.v.v.v)// it is valid
It can cause debuging becomes nightmare!
So I prefer if-else.
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The problem is how do you know what the piece of data that is invalid
ageorusernameor something (you need to have additional code). And what if you want to throw custom error message for each case?Array in JS is also weird (if you dont know the spec of
mapor using Typescript)It can cause debuging becomes nightmare!
So I prefer
if-else.