What is jQuery?
jQuery is “write less, do more” open source Javascript library.
Specialized for changing web page documents on the fly.
jQuery makes it easy to add action and interactivity to any web page.
jQuery makes things like HTML document traversal and manipulation, event handling, animation, and Ajax much simpler with an easy-to-use API that works across a multitude of browsers.
jQuery is the core library. jQueryUI is built on top of it. If you use jQueryUI, you must also include jQuery.
Importance of jQuery?
Open Source.
jQuery is SEO friendly and CSS3 compliant.
Browser Compatibility i.e.; Works for all browsers.
jQuery is very small, clean code that won’t bog down the loading time of web pages
Highly Documented.There’s a low learning curve. Since it’s based on plain old JavaScript, developers can learn jQuery fast.
Web page elements display even if JavaScript is disabled in the browser.
Simplifies AJAX.
It is extensible – jQuery can be extended to implement customized behavior.
History of jQuery
Developed by John Resig.
Initial Release – 2006
Current Version – 3.1.1
Main site: https://jquery.com/
Basic Structure of jQery
<script type = “text/javascript”>
//jQuery detects this state of readiness for you.
$( document ).ready() method will only run once the page Document Object Model (DOM) is ready for JavaScript code to execute.
$(document).ready(function(){
document.write(“Hello, World!”);// to print a string we will use document.write(); method
});
</script>
File Extension of jQuery
filename.js
Comment Line in jQuery
Single line comment is done using //
Multi- line comment start with /* and end with */.
Variable Declaration
In jQuery, you can declare variable in two styles.
- $.name = “value”;
2. var variable_name = “value”;
TONY STARK Mess Free Silicone Bib for Baby, Soft & Comfortable Baby Essentials Item for Feeding & Weaning Adjustable Baby Apron Baby Items
₹369.00 (as of December 30, 2024 20:24 GMT +05:30 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Pampers Active Baby New Born Diapers (72 Count)
₹991.00 (as of December 30, 2024 20:24 GMT +05:30 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Philips Avent Pacifier Ultra air | Lets Your Baby's Skin Breathe | Orthodontic & BPA Free | 2 Pack | 6-18m | SCF085/61
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AEREX Premium Reusable Baby Cloth Diapers For 0 to 3 Years With White Insert Pads | Leak Proof Washable Diapers For New Born Babies | Adjustable Pocket Cloth Diaper Nappies (Multicolor, Pack of 4)
₹499.00 (as of December 30, 2024 20:24 GMT +05:30 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
AEREX Premium Reusable Baby Cotton 2 Cloth Diapers For 0 to 3 Years With 2 Insert Pads Leak Proof Washable Diapers For New Born Babies Adjustable Pocket Cloth Diaper Nappies (Purple & Sky Blue)
₹299.00 (as of December 30, 2024 20:24 GMT +05:30 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Tedibar Baby Bathing Bar | For Baby’s Sensitive Skin | Gentle Cleansing, Skin-friendly, pH 5.5, 75gm, Pack of 3
₹529.00 (as of December 30, 2024 20:24 GMT +05:30 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Tony Stark Bamboo Baby Feeding Set - 5-Piece Tableware for Toddlers, Kids & Babies Includes Plate, Bowl, Cup, Spoon, Fork - BPA-Free, Unbreakable Eco-Friendly |Organic & Natural (Cute Lion)
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Bumtum Baby Diaper Pants, Medium Size, 72 Count, Double Layer Leakage Protection Infused With Aloe Vera, Cottony Soft High Absorb Technology (Pack of 1)
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MamyPoko Pants Extra Absorb Baby Diapers, Large (L), 64 Count, 9-14kg
₹948.00 (as of December 30, 2024 20:24 GMT +05:30 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
CAREIT Playards|Playpen for Kids up to 4 Years,Spacious 150x150 cm Baby Play Yard with Safety Lock & Hand Grip, Thick Padding & 360° Mesh Visibility, Portable Activity Center for Toddlers - Aqua Green
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Amazon Basics Foldable Laptop Table with Cup Holder, Tablet Groove and Mini Drawer (Black)
₹599.00 (as of December 30, 2024 06:24 GMT +05:30 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
SanDisk Cruzer Blade 64GB USB 2.0 Flash Drive
₹379.00 (as of December 30, 2024 06:24 GMT +05:30 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
ZEBRONICS Zeb-Jaguar Wireless Mouse, 2.4GHz with USB Nano Receiver, High Precision Optical Tracking, 4 Buttons, Plug & Play, Ambidextrous, for PC/Mac/Laptop (Black+Grey)
₹258.00 (as of December 30, 2024 06:24 GMT +05:30 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Ambrane Unbreakable 60W Fast Charging 1.5M Braided Type C to Type C Cable for Smartphones, Tablets, Laptops & Other Type C Devices, PD Technology, 480Mbps Data Sync (RCTT15, Black)
₹199.00 (as of December 30, 2024 06:24 GMT +05:30 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)