Marc questions

• How to merge two array of hashes based on hash's value?
• How to substitute words in Git history & properly debug related problems?
• How to use Sinatra's Haml-helper inside a model?
• How to add horizontal padding to every line in one multi-line wrapped sentence?
• How to do an if/else in HAML without repeating indented code
• How to calculate the XPath position of an element using Javascript?

Marc answers