Mutex is a very simple technique that helps to handle the problems came from shared memory programming. Simple, but very useful!
WaitGroup is the very common keyword to handle concurrency in golang. It is an essential part of shared memory programming
Factory method in general and how to implement it in PHP.
Strategy pattern in Golang, the concept and how to implement strategy pattern in the multi databases example. The rules of strategy
Handle Iframe using javacript, many magic solution for website integration
Adapter patern in general, the concept an how to implement it in PHP
Factory pattern in PHP
map, filter and reduce in Js, NodeJs. Using map instead of for to loop through all the element of arrays
Service provider in laravel, magic method, understand dependency injecttion in coding. how to bind a service and working with service container