How to display currency exchange quote from Yahoo Finance with JavaScript

In this tutorial I want to show you how to retrieve currency exchange rate quote from Yahoo Finance using JavaScript.

This price quote is updated every second. The script is originally provided by:

Here is the source code:

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Habibie is an Indonesian freelance programmer familiar with PHP, MySQL, HTML5, CSS3, JavaScript, Java, Swift, Python and C#. He makes Android and iOS games and apps. He's also good at graphics design, video editing, visual effect and animation.