Select2 dropdown but allow new values by user?

Question

I want to have a dropdown with a set of values but also allow the user to \"select\" a new value not listed there.

I see that select2 supports this if you are using

Answer 1

var text = 'New York Mills';
var term = 'new york mills';
return text.localeCompare(term)===0;

In most cases we need to compare values with insensitive register. And this code will return false, which will lead to the creation of duplicate records in the database. Moreover String.prototype.localeCompare () is not supported by browser Safary and this code will not work in this browser;

return this.text.localeCompare(term)===0;

will better replace to

return this.text.toLowerCase() === term.toLowerCase();