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updated Jquery.md (#28625)

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I have add more some details and some facts
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Aathil Ahamed
2019-01-31 05:17:40 +05:30
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@ -6,15 +6,22 @@ title: jQuery
![logo](https://upload.wikimedia.org/wikipedia/en/thumb/9/9e/JQuery_logo.svg/250px-JQuery_logo.svg.png "jQuery logo") ![logo](https://upload.wikimedia.org/wikipedia/en/thumb/9/9e/JQuery_logo.svg/250px-JQuery_logo.svg.png "jQuery logo")
jQuery is the most widely-used JavaScript library, and is used in more than half of all major websites. jQuery is the most widely-used JavaScript library, and is used in more than half of all major websites. It's motto is "write less, Do more...!"
jQuery makes web development easier to use by providing a number of 'helper' functions. These help developers to quickly write DOM (Document Object Model) interactions without needing to manually write as much JavaScript themselves. jQuery makes web development easier to use by providing a number of 'helper' functions. These help developers to quickly write DOM (Document Object Model) interactions without needing to manually write as much JavaScript themselves.
jQuery adds a global variable with all of the libraries methods attached. The naming convention is to have this global variable as <code>$</code>. by typing in <code>$.</code> you have all the jQuery methods at your disposal. jQuery adds a global variable with all of the libraries methods attached. The naming convention is to have this global variable as <code>$</code>. by typing in <code>$.</code> you have all the jQuery methods at your disposal.
## Example ## Get Started
When a user clicks on a button, all \<p> elements will be hidden: Before studying JQuery, you should have basic knowledge of these topics:
1. HTML
2. CSS
3. JavaScript
## Example Usage
When a user clicks on a button, all `<p>` elements will be hidden:
```javascript ```javascript
$(document).ready(function(){ $(document).ready(function(){