The question is about delivering working code faster without any regard for design, quality, maintainability, etc.
Here is the list of things that help me to write and read code faster:
Language: static typing, support for object-oriented and functional
programming styles, embedded documentation, short compile-debug-fix
cycle or REPL, automatic memory management
Platform: "batteries" included (text, regex, IO, threading,
networking), thriving community, tons of open-source libs
Tools: IDE, visual debugger, code-completion, code navigation,
refactoring