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Quick Guide on HTML / Javascript / CSS

Quick Tutorial on HTML / Javascript / CSS
W3.CSS
Javascript
HTML
Bootstrap CSS Framework
Tools
- Visual Studio Code
- Extension : Live Server

Javascript Library

jQuery
syntax : $(selector).action()
- $("p").hide() : hide paragraph element
- $("#test").hide() : hide element with id=test
- $(".test").hide() : hide element with class=test
- $(this).hide() : hide current element
- more...

download and add this

<!-- use downloaded jQuery library -->
<head>
<script src="jquery-3.5.1.min.js"></script>
</head>

<!-- use google CDN -->
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
</head>

Events
- .change()
- .click()
- .mouseenter()
- more...
AJAX (Asynchronous JavaScript and XML) : Exchange data with server
- $("#div1").load("demo.txt")
- $.get(URL,data,callback)
- $.post(URL,data,callback)
References Overview