javascript-core-concepts.hashnode.devCallback, Promise and Event Loop in JavaScriptCallback Definition: A callback is a function that is passed as an argument to another function and is executed later, usually after some operation is completed. JavaScript is a single-threaded, but m3d ago·7 min read
arraymethodjgk.hashnode.devArray Methods Every Developer Should MasterArray.prototype.map() : map() is a method of the Array object, which is an iterative method that executes a provided callBackFn function once for each element in an array, and constructs a new array from the results. map(callBackFn) map(callBackFn, t...Feb 9·8 min read
