Geoffrey H questions

• How to optimize React components with React.memo and useCallback when callbacks are changing state in the parent
• How to display JS error from source map in DOM
• Why wouldn't I use Child.prototype = Parent.Prototype rather than Child.prototype = new Parent(); for Javascript inheritance?
• How do I know which linux user Wordpress uses for plugin installation
• What is the proper way to access class variables in Ruby 1.9?

Geoffrey H answers