How to Extract Data from a Text File Using JavaScript?

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You can extract data from a text file using JavaScript by making an AJAX request to the file using the XMLHttpRequest object, then processing the contents of the file in the onload callback function. Here’s an example code snippet:

const xhr = new XMLHttpRequest();
xhr.open("GET", "data.txt");
xhr.onload = () => {
  if (xhr.status === 200) {
    const data = xhr.responseText; // get the text content of the file
    // process the data as needed
    console.log(data);
  } else {
    console.error("Error loading file:", xhr.statusText);
  }
};
xhr.send();

In the above code, the XMLHttpRequest object is used to make a GET request to a file named “data.txt”. The onload callback function is called when the request completes, and the responseText property of the XMLHttpRequest object is used to get the text content of the file. You can then process the text data as needed, for example, parsing it into an array or an object. If an error occurs, the onload callback function logs an error message to the console.

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