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daneelsan

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In Mathematica/Wolfram Languege, the part 0 of an expression is reserved for the head of the expression: f[x, y, z][[0]] == f. Or g[f][x, y][[0, 1]] == f.

There is a difference between online education because there is no other way as there is a pandemic (are the students and the institution ready to switch to online, are the courses even designed to be imparted online, etc.), and online education because it's a choice.

Some say they don't like it because it it's implicit control flow, i.e. I don't like that my code is being put into the end of the function without it being in the end of the function. I mean OK, but that's what for loops so right? The i++ is put at the end of the "while" loop, together with the exit condition. I think the more important problems are: 1) why be function scoped and not block scoped? 2)why should it be so tied up with lambdas?

1) I don't se why they chose function over scoped so please enlighten me 2) the proposal said there were debates whether defer free(ptr) refers to the ptr where the defer first appears, or to the current ptr that appears when the defer block is being executed. As someone mentioned, gotos already work in the latter way. Same goes with i++ in a for loop, I could do whatever I wanted with the i inside the for, and the i++ or the exit condition would use the latest value of i, not the value at the start of the block.

Why ado you think namespaces make it a no brainer? I would argue the only thing I would want from C++ it's operator overloading, and I'm not even conviced about that.

Sorry if I wasn't clear enough. Yes I want something like an object in javascript, like a struct in C but at runtime. But I want to implement this myself. At first I thought a hash table was the right choice. But I don't need the insert delete increase capacity that this data structure typically needs to implement. I want to implement this in Mathematica. The language doesn't have native objects given that the main idea is for things to be immutable. But I still can program data structures, so I'm looking for one...

This might not be the best place to ask but: I'm wondering what the best data structure is for these needs: * there are fields and values, similar to a struct * I know at initialization time what fields there are (assume a string) * at run time I want to be able to get this values accessing via the key/field * also I want to update those values * what I don't care about is inserting/deleting fields because that's now allowed,

I guess what I want is a struct like data structure, but in an interpreted language

Mightve typed to fast...