Kindly note that there is no reject method in javascript arrays like filters. So you need to define a new function and make it work like reject. Another very useful higher order function is map. It ...

Kindly note that there is no reject method in javascript arrays like filters. So you need to define a new function and make it work like reject. Another very useful higher order function is map. It ...

At its core, a higher-order function is just a function that accepts a function as an argument or returns a function. This is possible in JavaScript thanks to first-class functions, which means ...