This keyword is the scariest part of JavaScript. Yes, this is one of the most confusing topics so why is this confusing? because its value can sometimes seem unpredictable. There are rules that determine the value of this structure, and once we learn these rules, the concept of this will not confuse us.
Callbacks are functions passed to other functions to be called inside the outer function. it is any function called by another function using a parameter. when we pass a function to another function and it is executed in that function, we can call it a callback.
It is used to reduce the array to a single value and does not change the original array. We can do everything we do with map, filter, find with this structure. The easiest example to understand is to return the sum of all elements in an array with reduce. First, let's find the sum of the elements...
The map function processes the elements of the array or object one by one and returns them. So it's doing the conversion. We use it a lot when developing applications. With map, we change something and assign it to something new without breaking the existing structure.
You can prepare your url for SEO by using javascript in making slug url. I am saving the url I created to my database with `<input type = "text">` Add two inputs. set the id value to 'one' and 'two' ... Don't forget to add jquery.min.js library
Slider is the showcase of a website. So it is necessary to understand the logic well. There are many sliders we use on websites. We can use jquery, but we need to understand its logic with javascript. I have been developing projects with javascript recently. Here is a slider application...