Eval 👾

if you know about the dot notation, but are ignorant of the subscript notation, you might write:

eval("myValue = myObject." + myKey + ";"); 

〰 instead of :

myvalue = myObject[myKey]; 

The eval form is much harder to read.
This form will be significantly slower because it needs to run the compiler just to execute a trivial assignment statement ❗️

#Tips #JavaScript
@ProgrammingTip