Remove multiple commas between two strings

Question

I am having two strings separated by multiple commas. I need to retain only a single comma between the two strings. for example I have as follows var cptCode = G1077,,,,,,,,,,D3456 so after removing multiple commas, I will have like this : var cptCode = G1077,D3456 The user can enter 2 commas or 5 commas between the two strings. Maximum number of commas between the two strings will be 10. I request the members to let me know how to achieve this.

Answer 1

That's basic JavaScript. It doesn't really even matter how many commas are there, 2 or a million. Just replace them all with a single instance:

cptCode = cptCode.replace(/,+/g,',');

Where /,+/g is a Regular Expression meaning "find a comma (,) followed by any further commas (+), globally within the string (/.../g)." Each match will then be "replaced" with just a single comma (the second parameter).

Answer 2

Simple solution:

Add them to a list, then join the list.

List<String> values = <field>.split( ',' );
String result = String.join( values, ',' );