The debounce function allows for a callback function to be used more than once per given time frame. This comes in handy when assigning a callback function to frequently-firing events. The debounce function can really help speed up events. It can be used with a scroll, resize, key* event.
The poll function is another function that really makes things easier. It allows one to periodically “poll” the server and request new information (such as new messages or emails).The server then responds and sends the new information down to the client. This is done automatically and again and again over a certain period of time, so that the user does not have to manually check for updates.
The once function allows a developer to run a given functionality only once. This function is quite similar to an onload event. It runs one time for the page and not again for that page, and thus avoids duplicate initialization. The once function does not require the function being called to be declared a certain way because it is used when calling a function and not when defining the function. It can be used with any existing functions- including those within external libraries.
Each time a web page is loaded, the browser processes the code from top to bottom order. However, the onload function allows the developer to change this order. It gives the developer more control over the order of code execution and lets them decide the sequence of code execution. Each time the web page is loaded, the specific function will be executed.
Developers often ask users to validate a value by confirming the value input by them, but for this they must display the values as string. This is regardless of their data types. The toString function can be helpful here as it allows the developer to showcase the values of a variety of objects as characters. This certainly makes things easier. However, the toString function cannot manipulate the value converted into string or allow developers to make any changes to the original value or data type to the variable.
As the name suggests, getAbsoluteUrl allows one to get an absolute URL. Getting an absolute URL from a variable string is not that easy, which is why this function really comes in handy. It acts as an alternative to the URL constructor which can be tricky to use if the required arguments are not provided regularly. The getAbsoluteUrl allows one to bypass that entirely and is an easier way for getting an absolute URL from a string input.
isNative is a very handy function that allows one to tell whether or not a function is native or not. While it may seem irrelevant, it is quite important actually. Knowing if a function is native or not helps the developer decide whether or not to risk overriding it. Knowing the risks beforehand really puts things in perspective, and if you do end up messing something up down the line, this could help you figure out why.
The matchesSelector function allows one to check if an element is of a given selector match. Thus you can validate the element before moving forward. This reduces the number of errors that you may get down the line. If you cannot validate the element, then you can make changes here and now, rather than guess where the error is coming from down the line.