How to implement lazy loading in js_javascript skills

The example in this article describes how to implement lazy loading in js. Share it with everyone for your reference. The specific analysis is as follows:

setTimeout('yourFunction()',5000);
//5秒后执行yourFunction(),只执行一次 
setInterval('yourFunction()',5000);
//每隔5秒执行一次u 

If setTimeout('yourFunction()',5000) is called again in yourFunction(), a function similar to setInterval('yourFunction()',5000) can be completed

I hope this article will be helpful to everyone’s JavaScript programming design.