how to make a save button in html

Making statements based on opinion; back them up with references or personal experience. This can be done through Blob constructor. I only wanted the spread radius and color, so I set other values to zero. My code is GPL licensed, can I issue a license to have my code be distributed in a specific MIT licensed project? Another option is using the fetch methods, https://codepen.io/edgarv09/pen/KKabVob example. Get selected value in dropdown list using JavaScript.