Santan Kumar DasRemove duplicate from arraysInstead of using conventional for loop we can use map function to remove duplicates from an arrayApr 14Apr 14
Santan Kumar Dascallback// when a function is passed as params in a function is called callbackJan 1Jan 1
Santan Kumar Dascallback hell// Callback function enables us to do async programming in JS. We use this for some functions that are interdependent on each other for…Jan 1Jan 1
Santan Kumar Dasasync defer// are boolean attributes which are load along with script tags to load external script efficiently.Jan 1Jan 1