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Putting put string text in javascript raise syntax error


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In my Laravel 8 / jQuery 3.5.1 app I need to put string text in javascript like :

L.marker([{{$adLocation->lat}}, {{ $adLocation->lng }}]).addTo(locationMap)
.bindPopup("<b>Add Location!</b><br />"+'{!! crlf($adLocation->content) !!}'+".").openPopup();

I try to replace crlf characters with method like

function crlf(string $s) : string
return str_replace( array("\r\n", "\r", "\n"), "<br />", $s);

// 2 lines below does not work too
// return preg_replace('/\<br(\s*)?\/?\>/i', "\n", $s);
// return nl2br($s);

But anyway I got error :

edit:539 Uncaught SyntaxError: Invalid or unexpected token

and I see in browser : https://prnt.sc/wtpnri and https://prnt.sc/wtq78t

Which way is valid ?


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