在javascript中的两个标点字母之间替换表达式

Question

I have a string like the following,

var str = "abcd-12ad3dgs4g56.com"

I want like the following from this

abcd.com

I have to replace only -*. expression with . .
How do I do this in JavaScript?

Answer 1

Simply try this

str.replace( /-\w+/, "" ); //"abcd.com"

  var str = "abcd-12ad3dgs4g56.com" console.log(str.replace(/-\\w+/, "")); 

Answer 2

You could use a regular expression with a positive lookahead.

 var str = "abcd-12ad3dgs4g56.com"; console.log(str.replace(/-.*(?=\\.)/g, ''));