Javascript and DOM (Part 1) Javascript Tutorial for Beginners with Examples

Pubblicato il: 16 settembre 2016
sul canale di: Oum Saokosal

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Javascript and DOM (Part 1) Javascript Tutorial for Beginners with Examples
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In the part 1 of the series Javascript Tutorial for Beginners with Examples, you will learn the fundamentals of Javascript and DOM.

Download PPT https://goo.gl/ZFH8UU

Document Object Model or DOM opens a way in HTML to Javascript to get in to retrieve any element in HTML. The browser is called window object in DOM whereas html tag is document. We are interested in document here. You can reference to sub element under document by . (dot). For example document.title, document.head, document.body, document.links, and document.script. If you can get an element by id, you can simply call document.getElementById('elementId'). You can also use document.getElementsByTagName(), document.getElementsByName() and document.getElementsByClassName().

Next, I will teach you basic Javascript language for beginners, starting with a variable declaration, if else statement, for loop etc. Array is very important in Javascript. While function is another necessary part of Javascript. In the code, I will use an textbox and a button to show how to retrieve data from a text and pass it to a label using a javascript function, via a event onclick of a button.

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Oum Saokosal
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