What Is The Method To Read A Local JSON File In JavaScript?

To read an external local JSON file in JavaScript, you can use the XMLHttpRequest or fetch API. Here’s an example:

  1. Using XMLHttpRequest:
var xhr = new XMLHttpRequest();
xhr.open('GET', 'path-to-file.json', true);
xhr.onreadystatechange = function () {
    if (xhr.readyState === 4 && xhr.status == "200") {
        var response = JSON.parse(xhr.responseText);
        // Use the data from the JSON file
  1. Using fetch:
    .then(response => response.json())
    .then(data => {
        // Use the data from the JSON file
    .catch(error => console.error('Error:', error));

Replace 'path-to-file.json' with the correct path to your JSON file. After reading the JSON file, you can access the data within it and use it as per your requirement.

About the Author Rex

I'm a passionate tech blogger with an insatiable love for programming! From my early days tinkering with code, I've delved into web dev, mobile apps, and AI. Sharing insights and tutorials with the world is my joy, connecting me to a global community of like-minded tech enthusiasts. Python holds a special place in my heart, but I embrace all challenges. Constantly learning, I attend tech conferences, contribute to open-source projects, and engage in code review sessions. My ultimate goal is to inspire the next generation of developers and contribute positively to the ever-evolving tech landscape. Let's code together!