Jyf-largefile-crafter NPM

JyfLargefileCrafter: A Comprehensive Solution for Handling Large Files

The JyfLargefileCrafter is a robust and efficient JavaScript library designed to facilitate the reading and processing of large files in web applications. It provides a streamlined approach to manage and read large files in chunks, preventing memory overload and ensuring smooth performance.

JyfLargefileCrafter：处理大型文件的综合解决方案

JyfLargefileCrafter 是一个强大且高效的 JavaScript 库，旨在方便 Web 应用程序中大型文件的读取和处理。它提供了一种简化的方法来管理和分块读取大型文件，防止内存溢出，确保流畅的性能。

CommonJS

// Require the JyfLargefileCrafter module
const JyfLargefileCrafter = require('JyfLargefileCrafter');

// Create an instance of fileReader
const reader = new JyfLargefileCrafter.fileReader();

// Use the reader to process a file
reader.readAsText(file, (data) => {
  console.log(data);
});

AMD

// Define the module and its dependencies
define(['JyfLargefileCrafter'], function(JyfLargefileCrafter) {
  // Create an instance of fileReader
  const reader = new JyfLargefileCrafter.fileReader();

  // Use the reader to process a file
  reader.readAsText(file, (data) => {
    console.log(data);
  });
});

Browser

<!-- Include the JyfLargefileCrafter script -->
<script src="JyfLargefileCrafter.js"></script>
<script>
  // Create an instance of fileReader
  const reader = new JyfLargefileCrafter.fileReader();

  // Use the reader to process a file
  reader.readAsText(file, (data) => {
    console.log(data);
  });
</script>

Key Features:

Multi-File Support: Capable of reading multiple files simultaneously, making it ideal for applications that require batch processing of large datasets.
Memory Efficiency: Files are divided into manageable pieces, which are read in increments to avoid lagging and excessive memory consumption.
Progress Tracking: Keeps track of the progress for each individual file as well as the overall progress, providing real-time feedback on the status of file processing.
Line-by-Line Processing: For text files, JyfLargefileCrafter can process each line of text as it is read, allowing for immediate data handling and analysis.
Flexible Reading Modes: Supports reading files as text, binary strings, or ArrayBuffer, catering to various data processing needs.
Customizable Chunk Size: Users can specify the size of each chunk, giving control over memory usage and processing speed.
Integrated Progress Bar: Comes with an HTML5 progress element to visually display the current progress of file reading, enhancing user experience.

How It Works:

Initialize a JyfLargefileCrafter object.
Use the readAsText, readAsBinaryString, or readAsArrayBuffer methods to read files in chunks.
Process the data with a callback function provided for each chunk.
Monitor progress through the integrated progress bar or via the progress tracking methods.

Use Cases:

Data analysis tools that require reading large datasets.
Web applications that need to handle user-uploaded large files.
Content management systems dealing with large text or binary files.

主要特点：

多文件支持： 能够同时读取多个文件，非常适合需要批量处理大型数据集的应用程序。
内存效率： 文件被分成可管理的小块，以增量方式读取，避免延迟和过度的内存消耗。
进度跟踪： 跟踪每个单独文件以及整体进度，提供文件处理状态的实时反馈。
逐行处理： 对于文本文件，JyfLargefileCrafter 可以处理读取的每一行文本，允许立即进行数据处理和分析。
灵活的读取模式： 支持将文件读取为文本、二进制字符串或 ArrayBuffer，满足各种数据处理需求。
可定制的块大小： 用户可以指定每个块的大小，控制内存使用和处理速度。
集成进度条： 附带 HTML5 进度元素，直观显示文件读取的当前进度，增强用户体验。

工作原理：

初始化一个 JyfLargefileCrafter 对象。
使用 readAsText、readAsBinaryString 或 readAsArrayBuffer 方法分块读取文件。
使用为每个块提供的回调函数处理数据。
通过集成的进度条或进度跟踪方法监控进度。

用例：

需要读取大型数据集的数据分析工具。
需要处理用户上传的大型文件的 Web 应用程序。
处理大型文本或二进制文件的内容管理系统。