Basic method to Add html content to the page with Greasemonkey?

Question

Is there a Greasemonkey method to append basic HTML content to the end of a page right after the tag, or right before it ends?

I found befo

Answer 1

The quick and dirty way: Please only use innerHTML for brand-new content.

var newHTML         = document.createElement ('div');
newHTML.innerHTML   = '             \
    
             \
        
Some paragraph
       \
        etc.                        \
    
                          \
';

document.body.appendChild (newHTML);

---

---

A complete script showing the somewhat better jQuery way (and with new, ECMAScript 6, multiline string):

// ==UserScript==
// @name     YOUR_SCRIPT_NAME
// @include  http://YOUR_SERVER.COM/YOUR_PATH/*
// @require  http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js
// @grant    GM_addStyle
// ==/UserScript==
//--- The @grant directive is used to restore the proper sandbox.

$("body").append ( `
    

        
Some paragraph
        etc.
    
` );

---

---

Both methods will place the new content like this:

Which is a good place for it.

Even though the HTML is at the end of the page, you can use CSS to display it anywhere with something like:

GM_addStyle ( "                         \
    #gmSomeID {                         \
        position:       fixed;          \
        top:            0px;            \
        left:           0px;            \
    }                                   \
" );