i want it! it will increase my job security with features like this :

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String name => firstName + " " + lastName;

And an assignment:

String name = firstName + " " + lastName;

In the first example, the expression is recomputed every time name is evaluated. In the second example, the expression is computed once and the result assigned to name.

==

A function which looks like just a variable and recomputed each time! Happy debugging my code, suckers!