Description

tualo-code39 is a small and simple code 3 of 9 library written in javascript. This library creates simple text representation of the barcode for the given string. The function getCode(data) returns the barcode representation as string. "n" or "N" means you have to draw a narrow bar. "w" or "W" means you have to draw a normal bar. If the letter is in upper case you must draw a black bar. You don't need to draw the lower case letters, but you have to skip narrow or wide bar size ahead. Based on the width of the normal (or wide) bar's width, the narrow bar width must be the third part of that.

If the given string contains any not supported characters, an exception will be thrown.

Requirements

• node.js -- v0.8.0 or newer

Installation

npm install tualo-code39

How to Use

From nodejs:

var Code39 = require('tualo-code39').Code39;
var code39 = new Code39();
var ascii = code39.getCode('tualo.de');
console.log(ascii);

In a Browser:

<script src="lib/code39.js" type="text/javascript"></script>
<script type="text/javascript">
    var code39 = new Code39();
    var ascii = code39.getCode('tualo.de');
    console.log(ascii);
</script>

The output will be:

NwNnWnWnNnNnNnWnWwNnWwNnNnNnWnWnNnNwNnWnNnWnNnNwWnWnNnWnNwNnWwNnNnWnNnNnNnWwNnWnWnNnWwNnNnNwNnWnWnNn