I understand that the whole thing in Javascript'e, because if, for example, I insert the code of the icon <i class="fa fa-check"></i>
directly into the html code of the page, then the icon is displayed, but if I want to insert some element into the page using javascript, then the icon is not displayed (I look in the debugger, the icon code is specified correctly).
Maybe somehow you need to initialize the drawing of icons when pasting? Check in chrome.
Update
I insert it like this:
$('#showUploadFiles').append('<br><i class="fa fa-file-archive-o"></i>' + json.zip[i]);
I would be very grateful if you point out my mistake!