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GET, POST, PUT & DELETE using AJAX in JavaScript

AJAX (XMLHttpRequest) is a native object for making HTTP requests in JavaScript.

POST form data (also including a file) using Axios

Make a POST request containing form data as the payload using Axios.

Get image dimensions using JavaScript

How to get the dimensions of an image from a DOM element or URL alone.

Preview a user image before it is uploaded

How to preview an image and check its dimensions and size before uploading.

HTML5 table to CSV file download using frontend JavaScript

From HTML5 table, to array, to CSV file download using frontend JavaScript.

How to manipulate HTML5 element attributes using JavaScript

We examine JavaScript's powerful toolkit of methods for editing HTML5 attributes.

Create a client-side download with JavaScript

You can prompt a download to begin in a user's browser without contacting a server.

How to clear all children within a parent element using JavaScript

Learn how to remove all child nodes and elements from within a parent element using JavaScript.

Export a JavaScript array as a CSV file on the client-side

Make an array available for download in CSV format.

Generate QR codes using JavaScript

In JavaScript, QR codes can be generated using the free QRCode.js library.