Interesting background link for that code - with that iFrame insertion mentioned :
Re: -hxtps://code.sololearn.com/WZe4sWTl19rg/#html
Suspicious
-code.sololearn.com/bundles/jquery?v=yMmPM1TxecYcoWtCWW3jYgH0fr9kiAasOfb-W5I001A1 benign
[nothing detected] (script) -code.sololearn.com/bundles/jquery?v=yMmPM1TxecYcoWtCWW3jYgH0fr9kiAasOfb-W5I001A1
status: (referer=-code.sololearn.com/WZe4sWTl19rg/#html)saved 84194 bytes 8e9e0c2c1257f6691a79cacc0b8936e0976dc2b8
file: 8e9e0c2c1257f6691a79cacc0b8936e0976dc2b8: 84194 bytes (script) -cdnjs.cloudflare.com/ajax/libs/ace/1.2.2/ace.js
status: (referer=code.sololearn.com/WZe4sWTl19rg/#html)saved 347010 bytes e4a57a2ddcb1325b600b23c6b7fccdeadd0d4a98
-s7.addthis.com/js/300/widget.js#pubid=ra-5720d15c98e6f544
info: [decodingLevel=0] found JavaScript
error: undefined variable m - from -ajaxorg.github.io/ace-builds/src/ext-tools.js
(referer=-code.sololearn.com/WZe4sWTl19rg/#html)saved 356563 bytes 12fb3b97a3308b429c6ef44cb8e6a52875e7d85f
info: [iframe] -s7.addthis.com/js/300/javascript:
info: [img] -ssl.gstatic.com/images/icons/gplus-
info: [iframe] http
info: [decodingLevel=0] found JavaScript
suspicious: maxruntime exceeded 10 seconds
Above were 3rd party check results performed against a generic javascript unpacker (pol)
polonus (volunteer website security analyst and website error-hunter)