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$( document ). ready()A page can't be manipulated safely until the document is "ready." jQuery detects this state of readiness for you. Code included inside $( document ). ready() will only run once the page Document Object Model (DOM) is ready for JavaScript code to execute.
ready' function in a page? Can we add more than one 'document. ready' function in a page? Yes we can do it as like I did in below example both the $(document).
So technically they are both the same. Not major difference between these two declaration. They used based on weather you use JavaScript then you should use $(document). ready declaration in other case you use jQuery library which is a part of JavaScript then you should use $(function) declaration.
ready() and $(window). load() event is that the code included inside onload function will run once the entire page(images, iframes, stylesheets,etc) are loaded whereas the $(document). ready() event fires before all images,iframes etc. are loaded, but after the whole DOM itself is ready.
$ is the jQuery object itself, which when called implements a whole pile of different interfaces. $('string') runs a selector or constructs a node; $(domElement) wraps an element... and $(a_function) is a convenient short hand for $(document).ready(a_function). See the jQuery API docs for (much) more information.
A note in passing: $(function () { ... }) is shorter, but if you ever want to search for all of your on-ready events, you might be wishing that you had .ready to search for :)
There is no difference.
One is a convenient shorthand that calls the other internally.
From the jQuery docs:
A shorthand for
$(document).ready(). Allows you to bind a function to be executed when the DOM document has finished loading. This function behaves just like$(document).ready(), in that it should be used to wrap other$()operations on your page that depend on the DOM being ready to be operated on. While this function is, technically, chainable - there really isn't much use for chaining against it.You can have as many
$(document).readyevents on your page as you like. See ready(Function) for details about the ready event.
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