Do all selectors in jQuery start with a specific symbol?

In jQuery, all selectors indeed utilize the syntax that begins with the special symbol $(), which is a function used to select elements in the HTML document. This function allows developers to use various types of selectors to manipulate the DOM easily. The $ acts as a shorthand reference to the jQuery library, and the parentheses contain the selector string, allowing for various methods of selecting elements, such as by ID, class, element type, or other criteria.

While it's true that the content inside the parentheses of the $() function can include selectors starting with different symbols—like # for IDs and . for classes—the key point is that the selection process itself is initiated with $(). This is a fundamental aspect of using jQuery, as it signifies that you are invoking the jQuery library to access these functionalities and methods.