java script is single thread , where u can create once , but if you wanna use multiple can be two thread using 3 ways . call back function , promises all and async wait . <br />. <br />how to create javascript in html <br />always write java script within body but end of the html condition using <br />tag ... <br />// <br />//html>.... <br /><br />//or <br />use external link . just like stylesheet . creatiing file name name.js ... <br />(
