All rights reserved. Downloading and installing jQuery The easiest way to download the latest version of jQuery is via the jQuery homepage. To do this, you first need to understand 2 important concepts: jQuery objects, and the jQuery function. Understanding jQuery objects Most of the time, when you work with jQuery, you access methods and properties of jQuery objects.
The element s are returned as a jQuery object. The optional context argument lets you limit the search to children of a specific DOM node, instead of the entire page.
Selecting elements in the page to work on As you saw above, a common way to work with jQuery is to call the jQuery function with a selector string. So how does the code work? The function returns a jQuery object referencing these elements. In this example, there is only a single h1 element, but if you added more h1 headings to the page then they would all be selected. The code passes the argument 'slow' to the method to fade the element out slowly. This function has many uses, including selecting elements, creating elements, and running another function once the document is loaded.
A simple example that shows how to select all h1 elements in a page, fade them out, then fade them back in. Sorry thats alot of questions but first time using javascript. Cheers, Matt. It really made my day! Thanks for this article and looking forward to the rest of the series! Thanks for this great introductory article, Matt. Thanks again. Thanks for your comment Juzer. More to come soon! My custom code Other "initialize-jquery" queries related to "How should I initialize jQuery?
React can't start Android App fon unable to initialize a class React countup animation starts immediately after the page loading , should start when scrolled to the component without jquery Jquery - How to call a method based on console. How to initialize hook state. All state elements are missing Redux state not etting initialized in time Xstate: how can I initialize the state to a specific node? Related Questions. Can I use nodemailer in browser? What does this javascript syntax mean?
Which one is more proper to use? Improve this question. BartoszKP Reigel Reigel Add a comment. Active Oldest Votes. A couple cool things about it. Improve this answer. Doug Neiner Doug Neiner I really like this answer! Plenty of information, while the accepted answer is nice, yours is.. If you look closely, in the second example, there are two parentheses after the function declaration in this particular case, you pass in the global jQuery object as an argument to avoid conflict , thereby immediately invoking the function The right function to use depends on when you want the function to run.
Jacob Relkin Jacob Relkin k 29 29 gold badges silver badges bronze badges. Ashraf Sada Ashraf Sada 3, 2 2 gold badges 39 39 silver badges 44 44 bronze badges. I think I've read in fact that the explicit binding to the "ready" event is deprecated unless you explicitly know you want to do precisely that.
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