Javascript Meaning Dollar Sign

Stevo is right the meaning and usage of the dollar script sign in javascript and the jquery platform but not in php is completely semantic.

Javascript meaning dollar sign. Means select all p elements. In addition the dollar sign is perhaps not the most weird thing you can encounter in javascript. It has a special meaning in javascript.

In javascript identifiers are used to name variables and keywords and functions and labels. The dollar sign is commonly used as a shortcut to the function document getelementbyid. One of them is the percent sign.

Because it has become a common shortcut to document getelementbyid it means that various javascript libraries should play nicely together. A beginner or even a seasoned javascript programmer may be slightly intimidated having once spotted something as ambiguous as the dollar sign in javascript code. It obtains the remainder between two numbers.

Prototype jquery and most javascript libraries use the as the primary base object or function. In the javascript library jquery for instance the main function is used to select html elements. In javascript the first character must be a letter or an underscore or a dollar sign.

Most of them also have a way to relinquish the so that it can. Because this function is fairly verbose and used frequently in javascript the has long been used as its alias and many of the libraries available for use with javascript create a function that references an element from the dom if you pass it the. Sign is just a valid javascript identifier which is used as an alias for jquery.

Javascript has many operators. It s the remainder operator. Using the dollar sign is not very common in javascript but professional programmers often use it as an alias for the main function in a javascript library.