axiac questions

axiac answers

• Regular expression /[a-zA-Z0-9_-]/ return true when passing `!!!`
• Why does gettype() output "NULL" for an undefined variable?
• Files are in conflict despite gitignore should ignore them
• Creating patch files in git
• How should I count the number of operations in my algorithm?
• MySQL filter out self-references
• Beneifts of line continuation in Dockerfiles
• How to stop tracking the content of a directory in git?
• How to get the version of each installed formula in Homebrew?
• How to generate ABBAABBA... sequence with PHP and CSS nth-child