Functions don't *alter* anything. 20 is still 20 even after you evaluate f(20) t... | Hacker News

Hacker Newsnew | past | comments | ask | show | jobs | submit

		lmm on May 8, 2018 \| parent \| context \| favorite \| on: Conversations with a six-year-old on functional pr... Functions don't alter anything. 20 is still 20 even after you evaluate f(20) to be 6.

posterboy on May 12, 2018 [–]

That's where linear logic differs, if you will. The highest voted comment in this sub-thread already alluded to that.

lmm on May 14, 2018 | [–]

I'm a big fan of linear typing but I think of it as more like "consuming" the input than "changing" it.

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact