How can I concatenate multiple variables in SplunkJS script?

[clement]

How can I concatenate multiple variables in SplunkJS script?

e.g:
var date = Date.now();
var alertid = 12345;
var filename = date.concat("_").concat(alertid).concat(".txt");

do I need to import any library?

[hardikJsheth · Accepted solution]

You can use + for concatenating two strings.

newlabel = newlabel +"<font color=\"red\" face=\"verdana\">*</font>";