<textarea readonly id="result" name="result" style="width: 90%; height: 10000px;"></textarea>

.on("click", function(d){$.ajax({
url:"/source_code",
type: 'POST',
data: JSON.stringify(d.Method),
contentType: 'application/json;charset=UTF-8',
success: function(data_structure) {
var result = data_structure;
var final_code = "";
for(var i = 0; i<data_structure.length; i++)
{
     final_code += data_structure[i] + "n";
}
$("#result").append(
document.getElementById("#result").value = final_code;
var readOnlyCodeMirror = CodeMirror.fromTextArea(document.getElementById('result'), {
mode: "javascript",
theme: "default",
lineNumbers: true,
readOnly: true
});
}
})});

$("#result")
.empty()
.setNumber()
.append(final_code);
}
})});