The most common and best technique to call a function at the start of a setInterval is to call it before the first setInterval:
You may use this approach of a self-executing function that returns itself if you really want to isolate the function call to the setInterval:
The disadvantage of this design is that it creates a maintenance difficulty, as the next developer will have no idea what’s going on.
Did you know that private variables and functions in classes may be created using a special syntax supported by browsers and the JavaScript language? Let’s have a look at it!
A # at the beginning of a property or method’s name makes it private: To make a property or method private, add a # to the beginning of its name.
When you retrieve the value of an input[type=number], valueAsNumber returns the value as a Number type instead of the typical string representation.
Whenever you need to remove “space” as well as “special characters” between characters while typing, you can do it easily using native JavaScript & jQuery as described below :
Checkout this code in action,
In this video, you will get a quick overview of Global document object and its useful properties.
Full Stack Web Developer 