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How to read html

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2024-04-05 08:36:211198browse

How to read files in HTML

Get straight to the point:

HTML itself does not provide the ability to directly read files.

Detailed explanation:

In order to read the file content, you need to use JavaScript, a server-side language or a third-party library. Here are some common methods:

  • XMLHttpRequest: is a way to load files asynchronously without refreshing the page. Syntax: var xhr = new XMLHttpRequest();.
  • fetch(): is a modern replacement for XMLHttpRequest with a simpler syntax. Syntax: fetch('myFile.txt').then((response) => response.text());.
  • FileReader: Used to read local files, only available after user authorization. Syntax: var reader = new FileReader(); reader.onload = function() { ... }; reader.readAsText('myFile.txt');.
  • Server-side languages: For example, PHP or Node.js, files can be read through file system functions. For example: $content = file_get_contents('myFile.txt');.

Third-party libraries:

There are also many third-party libraries that can simplify the file reading process, such as:

  • jQuery.get(): Use XMLHttpRequest to load files asynchronously. Syntax: $.get('myFile.txt', function(data) { ... });.
  • axios: Library for making HTTP requests. Syntax: axios.get('myFile.txt').then((response) => response.data);.
  • fs-extra: Node.js library, providing file system related functions. Syntax: const fs = require('fs-extra'); const content = fs.readFileSync('myFile.txt');.

Which method you choose depends on your specific needs and environment.

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