You can, tho I don't recommend doing it. Using Blades means you are likely doing it in PHP file instead. I think keeping .js files by itself will allow better performance since browser stores cache on client's computer to allow quicker access.

The error "SyntaxError: missing ; before statement" is too general for us to tell what has gone wrong. Please check your chrome debugger for further more information.

Just a reminder, in Javascript, you should avoid using straight newline, that sometimes might cause unexpected problems. (It seems to me you might be on that issue. ) Try use string concatenation instead.

Example:

var html = ""

html += "<table id='tablaRazas'>";
html += "<tr>";
// blah blah blah....


document.getElementById("nombreRaza").innerHTML = html