Comment by rzzzt - Hacker Neue

rzzzt Sep 16, 2018 parent

Some of them allowed to use MID$ for the left-hand side of an assignment to replace a substring, which is also unexpected.

pvg Sep 16, 2018

MID$ still took a string as an argument, though, right?

rzzzt OP Sep 16, 2018

Yup, see https://www.hackerneue.com/item?id=17998173 for an example.

lucio Sep 16, 2018

That syntax was irregular but very useful. It was not surprising or confusing.

A$ = "ABCD"

MID(A$,2,2)="12"

PRINT $A

>A123

bbernoulli Sep 16, 2018

Assuming a typo here, but I would be surprised if the output contained "3"

quietbritishjim Sep 17, 2018

This is still going strong today in list slice notation in Python (and other languages, no doubt):

    x = [1,2,5,6]
    x[2:2] = [3,4]
    print(x)

(Slice notation can be used on any collection, not just lists, but you can't use it in assignment like that for strings because they're immutable, so you'd have to convert to a list of characters and back.)

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