gh-mirrors/bootdotdev-fcc-learn-golang-assets
1
0
Fork 0
mirror of https://github.com/bootdotdev/fcc-learn-golang-assets.git synced 2025-12-10 23:31:18 +00:00
Code Issues Packages Projects Releases Wiki Activity

first

Browse Source
This commit is contained in:
wagslane
2023-05-01 15:25:27 -06:00
parent f8912668b8
commit 9be3074de6
868 changed files with 58698 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
course/11-pointers/exercises/4-nil_dereference/readme.md Normal file
View File

@@ -0,0 +1,9 @@
# Nil Pointers
Pointers can be very dangerous.
If a pointer points to nothing (the zero value of the pointer type) then dereferencing it will cause a runtime error (a [panic](https://gobyexample.com/panic)) that crashes the program. Generally speaking, whenever you're dealing with pointers you should check if it's `nil` before trying to dereference it.
## Assignment
Let's make our profanity checker *safe*. Update the `removeProfanity` function. If `message` is `nil`, `return` early to avoid a [panic](https://gobyexample.com/panic). After all, there are no bad words to remove.