Question

I’m using the following to get the title from a feed:

var posttitleGETcalendar = entry.title.$t;
var posttitleREMcalendar = posttitleGETcalendar.split("_");
var title =  posttitleREMcalendar[0] + "<small>" + posttitleREMcalendar[1] + "</small>";

What I’m trying to do is split the titles I get after underscore and add the tag small to the part after it.
Works great when underscore is there, but it shows the word undefined after last word if underscore is not on title.
Is there a way to use

if underscore is on title, do 
if not, leave it as is

Thank you.

Answer 1

if(/_/.test(posttitleGETcalendar)) {
    // posttitleGETcalendar.indexOf('_') != -1 would do too

    // do your stuff here
}   

alternatively, you could use the replace method and skip the other auxilliar variables :

var title = entry.title.$t.replace('_', '<small>') + '</small>';