What is the best way to incorporate a Json file into a JavaScript file?

Question

What is the best way to incorporate a Json file into a JavaScript file?

Using JSON data in JavaScript

I recently wrote a JavaScript program that selects a random "advice number" between 1 and 50. Now, I need to figure out how to access a JSON file for the advice messages.

JavaScript file:

 Advice_number = Math.floor(Math.random() * 50) + 1

console.log(Advice_number)

function Advice_picker() {
  
}

JSON file:

[
    "When in the backrooms, keep your eyes low, for the walls have ears and the floors have eyes.",
    "Beware the flickering lights, for they are whispers of entities unseen.",
    "Navigate the endless halls with caution, for each turn may lead to another layer of despair.",
  ]

...

I have more advice messages in the JSON file

I've been searching for built-in functions to help connect the random number to the corresponding advice message, but haven't found any. If you know of any functions that could assist me with this, please let me know!

javascript json

Answer 1

Answer №1

One way to utilize JSON files in JavaScript is illustrated below.

    // Incorporate the file system module
    const fs = require('fs');
    
    // Retrieve data from the JSON file
    fs.readFile('data.json', 'utf8', (err, data) => {
        if (err) {
            console.error('An error occurred while reading the file:', err);
            return;
        }
    
        try {
            // Parse the JSON data
            const jsonData = JSON.parse(data);
    
            // Extract information from the JSON object
            const adviceArray = jsonData.advice;
    
            console.log(adviceArray);

        } catch (error) {
            console.error('Encountered an issue parsing the JSON:', error);
        }
    });

Answer 2

One way to utilize JSON files in JavaScript is illustrated below.

    // Incorporate the file system module
    const fs = require('fs');
    
    // Retrieve data from the JSON file
    fs.readFile('data.json', 'utf8', (err, data) => {
        if (err) {
            console.error('An error occurred while reading the file:', err);
            return;
        }
    
        try {
            // Parse the JSON data
            const jsonData = JSON.parse(data);
    
            // Extract information from the JSON object
            const adviceArray = jsonData.advice;
    
            console.log(adviceArray);

        } catch (error) {
            console.error('Encountered an issue parsing the JSON:', error);
        }
    });

Answer 3

Answer №2

If you're working with JavaScript on the client-side, one approach is to use the fetch API.

fetch('data/data.json') // Make sure to update the path to reflect the location of your JSON file
    .then(response => {
        if (!response.ok) {
            throw new Error('There was a problem with the network response');
        }
        return response.json(); // Parse the JSON data from the response
    })
    .then(data => {
        // Retrieve and work with the data from the JSON object
        const adviceArray = data.advice;
        console.log(adviceArray);
    })
    .catch(error => {
        console.error('An error occurred while fetching the JSON data:', error);
    });

Answer 4

If you're working with JavaScript on the client-side, one approach is to use the fetch API.

fetch('data/data.json') // Make sure to update the path to reflect the location of your JSON file
    .then(response => {
        if (!response.ok) {
            throw new Error('There was a problem with the network response');
        }
        return response.json(); // Parse the JSON data from the response
    })
    .then(data => {
        // Retrieve and work with the data from the JSON object
        const adviceArray = data.advice;
        console.log(adviceArray);
    })
    .catch(error => {
        console.error('An error occurred while fetching the JSON data:', error);
    });

Answer 5

Answer №3

To implement this functionality on the client side, you can utilize the assert method as demonstrated in this helpful article. Additionally, ensure to include the attribute type="module" within the script tag of your HTML document.

import advices from "./path/to/data.json" assert { type: "json" };
const adviceNumber =  Math.floor(Math.random() * 50 ) + 1;

console.log(adviceNumber);

function advicePicker() {
  return advices[adviceNumber];
}

Alternatively, you can opt for using the fetch() function, a method also explained in the aforementioned resource:

const adviceNumber =  Math.floor(Math.random() * 50 ) + 1;

fetch("./path/to/data.json")
  .then((response) => response.json())
  .then((data) => {
    console.log(data[adviceNumber]);
  })
  .catch((error) => console.error("Error loading JSON file", error));

Answer 6

To implement this functionality on the client side, you can utilize the assert method as demonstrated in this helpful article. Additionally, ensure to include the attribute type="module" within the script tag of your HTML document.

import advices from "./path/to/data.json" assert { type: "json" };
const adviceNumber =  Math.floor(Math.random() * 50 ) + 1;

console.log(adviceNumber);

function advicePicker() {
  return advices[adviceNumber];
}

Alternatively, you can opt for using the fetch() function, a method also explained in the aforementioned resource:

const adviceNumber =  Math.floor(Math.random() * 50 ) + 1;

fetch("./path/to/data.json")
  .then((response) => response.json())
  .then((data) => {
    console.log(data[adviceNumber]);
  })
  .catch((error) => console.error("Error loading JSON file", error));

What is the best way to incorporate a Json file into a JavaScript file?

Using JSON data in JavaScript

Answer №1

Answer №2

Answer №3

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