Efficient and convenient web barcode scanning: Use STRICH library to build web applications
This article will introduce how to use the STRICH JavaScript library to implement real-time one-dimensional/two-dimensional barcode scanning function in web applications, and explain the advantages of barcode scanning of web applications over native applications.
Core advantages of STRICH library:
- Real-time Scan: STRICH library supports all commonly used one-dimensional and two-dimensional barcode types and uses WebGL and WebAssembly technologies to achieve efficient and reliable scanning.
- Simplify development: Simply develop for a single platform (Web browser), simplifying the development process and reducing development costs.
- Easy deployment: No App Store audit required, the deployment is simple and fast, and can be updated at any time, avoiding the problem of publishing and updating native applications.
- User-friendly: Built-in user-friendly features such as camera selection, touch focus and flash in low light conditions.
Traditional barcode scanning relies on dedicated scanning devices to transfer data to applications via cable or Bluetooth connection. Nowadays, the popularity of smartphones allows developers to directly use their mobile phone cameras to scan barcodes and directly associate them with cloud data. For example: equipment maintenance records, parcel delivery status update, return processing, etc.
The advantages of choosing a web application barcode scanning:
- Simplified development: No need to develop for iOS and Android platforms respectively, just maintain a set of code.
- Easy distribution: No App Store or Google Play review required, direct deployment, convenient and fast.
- Avoid application fatigue: Users do not need to install additional applications to improve the user experience.
Usage of STRICH library:
- Get the License Key: Create an account in the customer portal and start a free trial to get the license key.
-
Add SDK: Use npm to install
@pixelverse/strichjs-sdk
. -
Initialize the SDK: In the application startup code, use the
StrichSDK.initialize()
method to initialize the SDK and pass in the license key. -
Configure the barcode reader: Use the
BarcodeReader
Current the barcode reader to specify the scan area and supported barcode types. - Processing barcode detection: Implementing barcode detection event processing program to process scan results.
Example of building barcode scanning application: Ticket Scanner
A simple ticket scanner application, including title, scan area, data display area (ticket number, holder information) and operation buttons (confirm, reject).
Summary:
STRICH library makes it easy to build barcode scanning functions in web applications. Web applications have significant advantages in development, deployment and user experience, especially for applications used internally. Combined with the powerful capabilities of the STRICH library, developers can quickly and efficiently create user-friendly barcode scanning applications.
(This article was written in collaboration with Pixelverse. Thanks to the partners who support SitePoint.)
The above is the detailed content of Introducing STRICH: Barcode Scanning for Web Apps. For more information, please follow other related articles on the PHP Chinese website!

JavaScript's application in the real world includes front-end and back-end development. 1) Display front-end applications by building a TODO list application, involving DOM operations and event processing. 2) Build RESTfulAPI through Node.js and Express to demonstrate back-end applications.

The main uses of JavaScript in web development include client interaction, form verification and asynchronous communication. 1) Dynamic content update and user interaction through DOM operations; 2) Client verification is carried out before the user submits data to improve the user experience; 3) Refreshless communication with the server is achieved through AJAX technology.

Understanding how JavaScript engine works internally is important to developers because it helps write more efficient code and understand performance bottlenecks and optimization strategies. 1) The engine's workflow includes three stages: parsing, compiling and execution; 2) During the execution process, the engine will perform dynamic optimization, such as inline cache and hidden classes; 3) Best practices include avoiding global variables, optimizing loops, using const and lets, and avoiding excessive use of closures.

Python is more suitable for beginners, with a smooth learning curve and concise syntax; JavaScript is suitable for front-end development, with a steep learning curve and flexible syntax. 1. Python syntax is intuitive and suitable for data science and back-end development. 2. JavaScript is flexible and widely used in front-end and server-side programming.

Python and JavaScript have their own advantages and disadvantages in terms of community, libraries and resources. 1) The Python community is friendly and suitable for beginners, but the front-end development resources are not as rich as JavaScript. 2) Python is powerful in data science and machine learning libraries, while JavaScript is better in front-end development libraries and frameworks. 3) Both have rich learning resources, but Python is suitable for starting with official documents, while JavaScript is better with MDNWebDocs. The choice should be based on project needs and personal interests.

The shift from C/C to JavaScript requires adapting to dynamic typing, garbage collection and asynchronous programming. 1) C/C is a statically typed language that requires manual memory management, while JavaScript is dynamically typed and garbage collection is automatically processed. 2) C/C needs to be compiled into machine code, while JavaScript is an interpreted language. 3) JavaScript introduces concepts such as closures, prototype chains and Promise, which enhances flexibility and asynchronous programming capabilities.

Different JavaScript engines have different effects when parsing and executing JavaScript code, because the implementation principles and optimization strategies of each engine differ. 1. Lexical analysis: convert source code into lexical unit. 2. Grammar analysis: Generate an abstract syntax tree. 3. Optimization and compilation: Generate machine code through the JIT compiler. 4. Execute: Run the machine code. V8 engine optimizes through instant compilation and hidden class, SpiderMonkey uses a type inference system, resulting in different performance performance on the same code.

JavaScript's applications in the real world include server-side programming, mobile application development and Internet of Things control: 1. Server-side programming is realized through Node.js, suitable for high concurrent request processing. 2. Mobile application development is carried out through ReactNative and supports cross-platform deployment. 3. Used for IoT device control through Johnny-Five library, suitable for hardware interaction.


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment

Notepad++7.3.1
Easy-to-use and free code editor

mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),

EditPlus Chinese cracked version
Small size, syntax highlighting, does not support code prompt function

Dreamweaver CS6
Visual web development tools