Arrow function in Javascript is one of the most useful feature that was introduced in JavaScript EcmaScript 6. You can also consider it as an anonymous or one line function. It also works differently than traditional functions when it comes to handling this keyword. In this article, I’m gonna give you brief explanation about what … Read more
The Filter() method is one of the most useful and inbuilt method in Python programming language. The filter() method is an iterator which takes two parameter, function and iterable_objects. Filter() Method: The filter method filters elements from given iterable_objects if any element from that object doesn’t satisfy the condition defined inside given function or return … Read more
Map() function is one of the useful functions in Python. In this article, we’re going to explore what is Map function and when you can use this function. Python map() function: A map function is also an iterable object. Basically, the Map function takes two parameters: one is a function and then the second is … Read more
In this article, I’m gonna show you different Aggregate functions in PostgreSQL. Basically, aggregate function are those function which performs a specific task on columns and then produce one aggregate result inside a row. We have different aggregate functions e.g. COUNT, SUM, MIN, MAX, AVG. We’re going to explore each of them one by one. … Read more