A running list of weird Swift things I encounter.
These are a few ideas for interview questions that explore some of the odd nuances of swift?
What will the following code print?
class Bla {
var closure1: Action?
var closure2: Action?
}let bla = Bla()
bla.closure1 = {
print("hello 1")
}bla.closure2 = bla.closure1bla.closure1 = {
print("successful interception")
}bla.closure2?()
At first it seems as though it might print “successful interception”. However, it actually prints “hello 1”.
class Bla {
var closure1: Action?
var closure2: Action?
}let bla = Bla()
bla.closure1 = {
print("hello 1")
}bla.closure2 = {
bla.closure1?()
}bla.closure1 = {
print("successful interception")
}
bla.closure2?()
It doesn’t seem like this change would do much, but now it prints “successful interception.”
git status Get a visual of current changes. red changes are unstaged changes. Green changes are staged changes.
I use the following to clear all changes
git reset Unstage your changes
git checkout .
git checkout -- .
git clean -f -fd -fx
