how to remove the last word in the string using JavaScript

Question

I would like to know how can I remove the last word in the string using JavaScript?

For example, the string is \"I want to remove the last word.\"

After usin

Answer 1

var str = "I want to remove the last word.";
var lastIndex = str.lastIndexOf(" ");

str = str.substring(0, lastIndex);

Get last space and then get sub string.