How can I trim the leading and trailing comma in javascript?

Question

I have a string that is like below.

,liger, unicorn, snipe,

how can I trim the leading and trailing comma in javascript?

Answer 1

In ECMAScript 5 and above, you can now do a one-liner

',liger, unicorn, snipe,'.split(',').map(e => e.trim()).filter(e => e).join(', ')