Question

11

read external file with Javascript

rated 0 times [ 12] [ 1] / answers: 1 / hits: 17349 / 13 Years ago, tue, september 13, 2011, 12:00:00

I have an external textfile of variable length named profiles.txt with information in the following format:

 Jason/Red/Tyrannosaurus

 Zack/Black/Mastodon

 Billy/Blue/Triceratops

 Trini/Yellow/Griffin

 (etc)

How can I read through the file using JavaScript to output the following HTML:

 Name: Jason<br>

 Color: Red<br>

 Avatar: Tyrannosaurus<br>

 <br>

 Name: Zack<br>

 Color: Black<br>

 Avatar: Mastodon<br>

 <br>

 (etc)

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kylanalis

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answered 13 Years ago joep · Accepted Answer

Here's an example using XMLHttpRequest:

var xmlhttp;

xmlhttp=new XMLHttpRequest();

xmlhttp.open('GET', test.txt, false);

xmlhttp.send();

document.write(xmlhttp.responseText.split('rn').map(function (i) {return i.replace(/(.+),(.+),(.+)/g, 'Name: $1<br>Color: $2<br>Avatar: $3<br>')} ).join('<br/>'));

Array.map needs to be shim in IE8 and below. Also, IE uses new ActiveXObject(Msxml2.XMLHTTP)
This is a very slimmed down example. I'm using asyc false which is bad and document.write which is bad. But I just wanted to demonstrate getting the file and parsing the input.