Remove all characters from a string from last comma onwards

Question

Say I have a string that looks like this:

'Welcome, your bed is made, your tea is ready.'

Using jquery, how can I remove all the characters after the the last comma including the last comma itself so that the string shows as:

'Welcome, your bed is made' // all characters after last comma are removed

Answer 1

只需阅读到最后一个, ：

str = str.substr(0, str.lastIndexOf(","));

Answer 2

You can using combination of .split() and .slice()

 var str = 'Welcome, your bed is made, your tea is ready.'; var arr = str.split(','); arr = arr.splice(0, arr.length - 1) alert(arr.join(',')) 

Answer 3

You can use the string's replace() method with the following regular expression:

 var str = 'Welcome, your bed is made, your tea is ready.' str = str.replace(/,([^,]*)$/, ''); $('#result').text(str); 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script> <p id="result"></p> 

Answer 4

Here is your jquery code

<script type="text/javascript">
$(document).ready(function(){
    var str = 'Welcome, your bed is made, your tea is ready.';
    var n = str.lastIndexOf(",");
    var str1 = str.slice(0,n);
});