Pointfree programming style guide

Pointfree programming style guide Original author: Ruan Yifeng Date: March 13, 2017 This article will answer a very important question: What is the use of functional programming ? At present, the mainstream programming languages ​​are not functional, and they have been able to meet the demand. Why do you still need to learn functional programming,… Continue reading Pointfree programming style guide

IntersectionObserver API tutorial

IntersectionObserver API tutorial Original author: Ruan Yifeng Date: November 3, 2016 When developing a web page, it is often necessary to know whether an element has entered the “viewport”, that is, whether the user can see it. The green square in the picture above keeps scrolling, and its visibility will be indicated at the top.… Continue reading IntersectionObserver API tutorial