Pry: IRB on vitamins

Pry is a REPL that is an alternative to IRB.

Transcript

1. Pry IRB on vitamins
2. Who am I? • Jearvon Dharrie • Twitter: @jearvon • irc: iamjarvo
3. What is pry? • REPL(read, eval, print loop) • Powerful alternative to IRB
4. High level view • Syntax highlighting / Proper Indentation • Customizable • Quick documentation lookup • Quick monkey patching • Great debugging tool • Gist capabilities
5. Pry in my day to day • Debugging • Documentation lookup
6. Installation • gem i pry pry-doc (reading stuff written in c) • pry • help
7. Now the cool stuff!
8. Documentaion • show-doc Array#take_while • a = [1, 2, 3] • show-doc a.take_while
9. Viewing Source • show-source Array#take_while -l • a = [1,2,3] • show-source a.take_while -l
10. Gist • Install jist gem ( https://github.com/conradirwin/) • jist --login • gist -m Array#take_while • gist -m a.take_while
11. Easily cd into a gem • gem-cd “gem name”
12. Shell commands • Prefix commands with . • .pwd • .ls
13. REPL capabilities • input buffer multiline text waiting to be completed • ! clears input buffer • show-input => shows the current input buffer • amend-line N replacement
14. Navigating around • cd object • ls • can grep output of ls • ls -h
15. Patching on the fly
16. Current state
17. Rails console • Alias pryr to launch pry with rails environment • pry -r ./config/environment
18. Plugins • pry-debugger • pry-remote • pry-stack_explorer • pry-theme • pry-debundle
19. .pryrc • Alias commands • set colorscheme
20. From here • #pry on freenode • give it a pry!