CraftCMS: force links in field instructions to open in a new window

craft-instruction-links.js

/*
Craft permits Markdown in its field instructions but doesn't permit raw HTML.
That's a pain when you want your field instructions to have links to documentation 
elsewhere, because one would want such links to open in a new window.

So, with Lindsey DiLoreto's 'Control Panel JS' plugin (https://github.com/lindseydiloreto/craft-cpjs) installed, 
just use it to add…
*/

var links = document.querySelectorAll(".instructions a"), i;

for (i = 0; i < links.length; i++) {
    var link = links[i];
    
    link.target = '_blank';
    link.title  = 'Opens in a new window';
}