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”;
MCLEAR Cabinet Door Locks for Baby Safety Proofing, Door Locks with Adhesive, for Drawer Cupboards Fridge Oven Closet & Pantry, Childproof Door Latch for Protecting Kids Toddler and Infant, Pack of 5
₹159.00 (as of December 4, 2023 08:22 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.)
VN Care Edge Protector for Furniture Table Corner Guards for Sharp Edges Silicon Table Corner Protector for Baby Gel Table Corner Protector and Soft PVC Transparent Corner Guard Pack of 12
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Himalaya Baby Gift Pack Series,Pack of 1 set,white
₹181.00 (as of December 4, 2023 08:22 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.)
Maanit Round Kids Walker with Foldable, Cushion Seat | Activity Walker for Baby with Musical Toy Bar | Walker Baby 6-18 Months Boys Girls (red)
₹799.00 (as of December 4, 2023 08:22 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 All round Protection Pants Style Baby Diapers, XXX-Large (XXXL) Size, 22 Count, Anti Rash Blanket, Lotion with Aloe Vera, 17+ kgs Diapers
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Pampers All round Protection Pants Style Baby Diapers, Large (L) Size, 64 Count, Anti Rash Blanket, Lotion with Aloe Vera, 9-14kg Diapers
₹955.00 (as of December 4, 2023 08:22 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.)
Mamaearth Baby Rich Moisturizing Cream With Almond Oil & Shea Butter For Dry Skin - 200 g | For Face & Body | 24-Hour Moisturization | Nourishes & Softens Skin
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Exilom Glow in The Dark Blanket Unicorn Gift for Kids Girls Birthday Christmas Halloween Present Light Up Rainbow Unicorn Toy Bedroom Bed Decor Fun Soft Fluffy Plush Glowing 72"x72"(Unicorn Purple)
₹1,299.00 (as of December 4, 2023 08:22 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.)
BeyBee Waterproof Quick Dry Sheet for Baby| Bed Pad Anti-Piling Fleece Extra Absorbent Washable Matress Protector| Baby Bed Protector Sheet for Toddler Children, Large Size, 140x100cm, Grey
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LuvLap Paraben Free wipes for baby skin with Aloe Vera, Fragrance Free, pH Balanced, Dermatologically Safe, Baby Wipes Rich in Vitamin E & chamomile extract, 72 Wipes / Pack With Lid Pack, 3 packs, Packaging might vary
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Dell USB Wireless Keyboard and Mouse Set- KM3322W, Anti-Fade & Spill-Resistant Keys, up to 36 Month Battery Life, 3Y Advance Exchange Warranty, Black
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Logitech M221 Wireless Mouse, Silent Buttons, 2.4 GHz with USB Mini Receiver, 1000 DPI Optical Tracking, 18-Month Battery Life, Ambidextrous PC/Mac/Laptop - Charcoal Grey
₹799.00 (as of December 3, 2023 16:58 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 32GB USB Flash Drive
₹349.00 (as of December 3, 2023 16:58 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.)
TP-Link AC750 Wifi Range Extender | Up to 750Mbps | Dual Band WiFi Extender, Repeater, Wifi Signal Booster, Access Point| Easy Set-Up | Extends Wifi to Smart Home & Alexa Devices (RE200)
₹1,799.00 (as of December 3, 2023 16:58 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.)