Javascript/jQuery variable

[Otto]

Javascript/jQuery variable, what is the proper way to use a var?

$() creates a new jQuery object. If you save a jQuery object to a variable it is pointless to create another jQuery object from it, although it still works. You will often see people wrap variables that were previously created as jQuery objects in $() purely due to bad practice and either forgetting it's already an object...or not understanding what they just created in the first place

Perhaps you may have seen

Code: Select all

var $nav = $('nav');

$nav.hide();

Using the $ prefix is a common practice to denote that the variable is a jQuery object for code readability mostly


https://stackoverflow.com/questions/197 ... -use-a-var