How to run Java Script

How to run Java Script

July 24, 2016

There are many Java scripts available that can assist you with data analysis.   Running a java script is quite easy - they run in a web browser when embedded in a html file.     

 

This sample Java 'Digital clock' script can be found here  

 

 

<html>
<head>
<title>Javascript Digital Clock - An example of a Timer</title>

 

<script language="javascript" type="text/javascript">var dateform
speed=1000
tid=0;function dodate(){f.date.value=new Date();tid=window.setTimeout("dodate()",speed);}function start(x){f=x
tid=window.setTimeout("dodate()",speed);}function cleartid(){window.clearTimeout(tid);}</script>

 

</head>

 

<body onload="start(document.dateform) ;">
<center>
Digital Clock
<FORM name="dateform" action="post">
<input type="text" name="date" size=30>
</FORM>
</center>

 

<br><br>
<a href="jsindex.html"> More java script examples </a>
<br>

 

</body>
</html>

 

 

.  . . it can be pasted into a text file [make sure the returns appear in the right places] and then save and change the extension to .html.    Depending on your settings in Windows, simply clicking on the file should open it in Internet Explorer.   You will likely get a warning that running scripts are restricted and be prompted by IE to allow block content.  Click 'Allow blocked content' and let the script run. 

 

You should get a result that looks just like the below, where I have embedded the Java script

 

 

 If a Java script is not embedded in an html file, you can run it by downloading Node, from this site, https://nodejs.org/en/ .   Once Node is installed, you should find it your Programs menu   Open it and simply type in:

 

node C:\folder\hello.js

 

Java scripts not embedded in html files are saved with the extension .js.

 

 

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