undefined | Better HN

0 pointsfooblitzky6y ago0 comments

It seems if you use '=' it leads to dangerous programming bugs[1], whereas ':=' somehow prevents those bugs?

0 comments

2 comments · 2 top-level

It's so that something like this remains invalid syntax, instead of an unpleasant accident.

  x = False
  if x = True:
      sadness()

It's much easier to leave off one = when you meant == than it is to accidentally type :=

j / k navigate · click thread line to collapse