What is the js policy model

This article mainly explains "what is the js strategy model". The content of the explanation is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "what is the js strategy pattern".

1. Define a series of algorithms, encapsulate them one by one, and let them replace each other.

2. It can help us write less if...else.... At the same time, it can make the logic of the code clearer, reduce the coupling between different blocks, and make the code easier to maintain.

Example

Function payOver () {console.log ('settlement completed')} function wxPay (orderId, money) {console.log ('WeChat Pay') payOver ()} function jdPay (orderId, money) {console.log ('JD.com pay') payOver ()} function bankCardPay (orderId, money) {console.log ('Bank Card payment') payOver ()} function pay (type, orderId) Money) {if (type = 'wxPay') {wxpay (orderId, money)} esle if (type =' jdPay') {jdpay (orderId, money)} esle if (type = 'bankCardPay') {bankCardPay (orderId, money)} / / omitted here I don't know how many else if} thank you for your reading. The above is the content of "what is the js strategy model". After the study of this article, I believe you have a deeper understanding of what is the js strategy model, and the specific use needs to be verified by practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!