删除 Javascript 中的部分字符串

Question

I have a String like this in Javascript:

string = '@usernameWhats on your mind?'

I need to get rid of 'Whats on your mind?' from the string.

How would I do that?

Answer 1

var new_string = string.replace('Whats on your mind?', '');

Answer 2

At first, you can split the string:

string.split("@username"); // ["", "What on your mind?"]

Then pop removes the last element.

const newString = string.split("@username").pop();