What are some JavaScript concepts that took you the longest to understand?
30th July 2013
My answer to What are some JavaScript concepts that took you the longest to understand? on Quora
Closures, prototype inheritance, and the “this” keyword.
Once you understand those three, you know most of what there is to know about the JavaScript language in my opinion (with the exception of some of the newer language features like iterators and generators).
More recent articles
- Video: Building a tool to copy-paste share terminal sessions using Claude Code for web - 23rd October 2025
- Dane Stuckey (OpenAI CISO) on prompt injection risks for ChatGPT Atlas - 22nd October 2025
- Living dangerously with Claude - 22nd October 2025