How to remove every thing after last comma character in a string?

Question

With JavaScript, how can I remove every thing after last coma character in a string using regular expressions?

For example if i input Vettucaud, Thiruvananthapuram, Kerala, India,last word India should be removed and the output need tro be like Vettucaud, Thiruvananthapuram, Kerala

Exactly the reverse thing in

• How to get the string after last comma in java?
• get all characters after “,” character

Answer 1

Simple:

str = str.replace(/,[^,]+$/, "")