Is it jQuery - Regarding the naming convention, should we choose a selector or an

I feel like this question might sound silly, but I can't seem to find a clear answer and it's starting to drive me crazy.

Do all selectors passed to the jQuery constructor count as elements?

Elements in the Document Object Model (DOM) include HTML, HEAD, BODY, DIV, SECTION, A, P, etc.

But what about selectors like window and document? Can they also be considered elements?

I'm asking this seemingly trivial question because when it comes to naming conventions, I often see jQuery selectors referred to as elements or passed as function arguments using names like el, element, or even elem.

Thank you!

jqueryhtmlcssjquery-selectorselement

Answer №1

An element refers to a node within the Document Object Model (DOM), or the Javascript object representing a node.

A selector is a string used to specify which elements to locate in the DOM. jQuery selectors share similarities with CSS selectors. They can include tag names like div, ID selectors like #container, class selectors like .myclass, attribute selectors like [name=username], pseudo-selectors like :checked, and various combinations of these.

The jQuery() function allows for either an element or a selector as input, resulting in a jQuery collection object that contains the specified elements. When given an element, it wraps it in a jQuery object; when provided a selector, it searches the DOM for matching elements and then wraps them accordingly.

In the example code snippet below, jquery and jquery2 are essentially interchangeable:

var element = document.getElementById("someid");
var jquery1 = $(element);

var selector = "#someid";
var jquery2 = $(selector);

The jQuery() function also has the capability to accept other types of input beyond what is directly relevant to the current question.

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