How can I find a label that is in a webpart, but not in .js files?

Question

On a SharePoint webpage there is a webpart which contains the label Leistungszeitraum. The problem I have is that I don't find the label in any of the JavaScript classes I have nor do I find it in a list of my Website Contents.

I used the developer tools and it showed me this:

Where can I find the label Leistungszeitraum so that I can change it?

Answer 1

Try to use

document.getElementsByClassName("nf-label-control")[0]

Or jQuery

    <script type="text/javascript" src="https://code.jquery.com/jquery-1.12.4.js"></script>
    <script type="text/javascript">
     var labelText = $(".nf-label-control").text() 
    </script>

Provide more details if need further help.