JavaScript Answers

How to parse JSON objects for HTML table with JavaScript?

Spread the love

Parsing JSON objects and generating an HTML table dynamically with JavaScript involves iterating over the JSON data and constructing table rows and cells accordingly.

For example write the following:

Suppose you have a JSON object like this:

var jsonData = [
  { "name": "John", "age": 30, "city": "New York" },
  { "name": "Alice", "age": 25, "city": "Los Angeles" },
  { "name": "Bob", "age": 35, "city": "Chicago" }

You can generate an HTML table from this JSON data like this:

// Function to generate HTML table from JSON data
function generateTable(jsonData) {
    var table = document.createElement('table');
    var thead = document.createElement('thead');
    var tbody = document.createElement('tbody');
    var headRow = document.createElement('tr');
    // Add table header
    Object.keys(jsonData[0]).forEach(function(key) {
        var th = document.createElement('th');
        th.textContent = key;
    // Add table rows and cells
    jsonData.forEach(function(rowData) {
        var row = document.createElement('tr');
        Object.values(rowData).forEach(function(value) {
            var cell = document.createElement('td');
            cell.textContent = value;
    return table;

// Get the container element where you want to append the table
var container = document.getElementById('table-container');

// Generate the table and append it to the container

In this code, the generateTable() function takes the JSON data as input and creates an HTML table.

It first creates the <table>, <thead>, and <tbody> elements.

Then, it creates the table header (<th>) by iterating over the keys of the first object in the JSON data.

Next, it iterates over each object in the JSON array, creates a new table row (<tr>), and populates it with table cells (<td>) containing the values from the JSON object.

Finally, it appends the table to a container element in the HTML document.

Make sure to replace jsonData with your actual JSON data and table-container with the ID of the container where you want to append the table.

By John Au-Yeung

Web developer specializing in React, Vue, and front end development.

Leave a Reply

Your email address will not be published. Required fields are marked *