JSFiddle - React, Tailwind, and code Playground

HTML

<a href="link1.html">ссылка1</a>
<a href="link2.html">ссылка2</a>

JavaScript

let links = document.querySelectorAll('a');
let links_array = [];
for (var i = 0; i <= links.length - 1; i++) {
	links_array.push(links[i].getAttribute('href'));
}
alert(links_array);