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When I try to use $("#div_id") in $(document).ready it returns NULL, but when I use jQuery("#div_id") it returns the actual object!
Why is that happening?
UPDATE: I tried noConflict method without gaining any hints.
jQuery.noConflict() function (a,b){return new c.fn.init(a,b)} $.noConflict(); TypeError: Object function () { return document.getElementById.apply(document, arguments) } has no method 'noConflict' UPDATE 2:
$(document).ready(function() { debugger; }); <input type="text" id="test" name="test" value="123" /> When I run the following code in the console i got those results:
$("#test").val() TypeError: Cannot call method 'val' of null jQuery("#test").val() "123" Thanks
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JavaScript is a programming language. jQuery is an Application Programming Interface (API). JavaScript boosts up the execution of a program and saves the time required for connecting to the server. It provides numerous interfaces to developers for creating catchy web pages.
Though JavaScript is the basic language from which jQuery has evolved, jQuery makes event handling, DOM manipulation, Ajax calls much easier than JavaScript. jQuery also allows us to add animated effects on our web page which takes a lot of pain and lines of code with JavaScript.
$() = window. jQuery() $()/jQuery() is a selector function that selects DOM elements. Most of the time you will need to start with $() function. It is advisable to use jQuery after DOM is loaded fully.
The hash (#) specifies to select elements by their ID's. The dot (.) specifies to select elements by their classname. You can read more about the selectors here: http://api.jquery.com/category/selectors/basic-css-selectors/
See jQuery.noConflict(). Could other javascript libraries on your page be using the $ variable?
$ is just a variable that is used to alias jQuery and being a variable, anything could be assigned to it.
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