I need a typescript programmer to make simple script and then use XHR request to compile HTML script

I have a piece of HTML5 software called Pixilab Blocks which I need a custom script (JS / TS) writing for to write a 'input text' to a file. Then a HTML5 file to pull this custom text via XHR request to use the inputted text in an HTML5 output. I have the HTML file, I just need the script and the coding to request the text. Here is a link to the scripting: [login to view URL] Here is a link to their example scripts: [login to view URL] Here is the information from the forum of the developers: " using a user script and the SimpleFile API, you can write data to a file under /public, that can then be accessed under that URL. If the data you write is valid HTML or CSS, it can be used as such. Learn more about the SimpleFile API here: [login to view URL] … [login to view URL] Perhaps the snippet to be animated could live in its own file on the server, and then be pulled into your HTML5 creation by an XHR request? Sounds like the simplest solution to me." Here is a video link explaining the requirement in more detail. [login to view URL] Estimated 4-6 hours of work. project finish within 5 days