2023 - Parzibyte's blog

JavaScript: store and read files with the Origin Private File System

Leave a Comment / JavaScript / parzibyte

In this post you will learn how to use the Origin Private File System with JavaScript to store, read and remove any file on the web browser. You may try the demo here: https://stackblitz.com/edit/vitejs-vite-hl34zf?file=index.html As I said before, the Origin Private File System has arrived to revolutionize things with JavaScript. Thanks to OPFS we can […]

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JavaScript: download file with fetch

Leave a Comment / JavaScript / parzibyte

In this post you will learn how to download a file in the background using client-side JavaScript and the fetch function to make HTTP requests. We will see how to download a file as a blob using AJAX and then ask the user where to save it, suggesting a name. The good thing about this

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SQLite3 with vanilla JavaScript and OPFS – Hello world

Leave a Comment / JavaScript, SQLite3 / parzibyte

In this post I will show you how to use SQLite3 directly in the web browser using the original C library through WebAssembly and OPFS to store the database. In this way we will have original SQLite3 on the web to work in the browser with JS on the client side. We can do this

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Ticket impreso con Python en impresora térmica usando Plugin v3

Python Thermal Printing: A Comprehensive Guide for Printing on Thermal Printers

Leave a Comment / Python, Thermal printer / parzibyte

In this tutorial, we’ll explore how to effortlessly print receipts, invoices, and tickets on a thermal printer using Python. I’ll introduce you to a powerful plugin that I’ve developed, enabling seamless integration for Python-based applications. With this plugin, you’ll gain the ability to effortlessly print tickets from Python, regardless of your preferred framework—whether it’s the

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Image printing on Thermal printer

Leave a Comment / JavaScript, Thermal printer / parzibyte

When printing receipts on thermal printers (ESC POS) sometimes it is needed to print images of any type, for example, to print the customer’s logo and so on. In this post I will show you how to print any kind of images: you will be able to print local images, base64 images and internet images.

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Print diacritic text in thermal printer – ESC POS commands

Leave a Comment / ESC POS commands, Thermal printer / parzibyte

In this post I will show you how to print spanish text, text with accents or ñ letters on a thermal printer. I have been searching for this for a long time and now I want to share it. Printing spanish text or diacritict text is necessary because sometimes the customer’s names or data contains

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Dashboard - Explore top dishes, kitchen status and more with this free web-based restaurant software

Free restaurant software

Leave a Comment / Free software, JavaScript, Thermal printer, Windows / parzibyte

Today, I’m adding to the list of my free programs a software for managing restaurants. This program will allow you to register tables, payment methods, dishes (with photos), modify the currency, language, generate a printable menu, view the order, and even allow self-service for customers. Moreover, the free restaurant system I’ve created is compatible with

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Passing parameters to Svelte function

Leave a Comment / JavaScript, Svelte / parzibyte

In Svelte we can define functions that are going to be called when an event is triggered. For example, to call holaMundo on the click of an element we can indicate it as on:click={holaMundo} Sometimes it is necessary to pass parameters to that function inside a Svelte component, but we cannot indicate it like this:

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