how to enter a random value in a textarea without an id?

Question

I have to enter a random value in a textarea of a web site by using grease monkey script the text area didn\'t have an id so document.getElementB

Answer 1

You could use element.querySelector if you want to be able to specifically target an element using a CSS selector, similar to this:

var textArea = document.querySelector('table tr td.pd5 textarea.msgbox');
textArea.value = "My Random Text";

The above is working on the following HTML example:

    

        

            
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140 characters max.
            
        
    

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DEMO - Using element.querySelector

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Off course, you can now change the CSS selector to anything you like to match your DOM hierarchy. There is lots of flexibility using element.querySelector.