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How to delete last character from a string using jQuery?


Question

How to delete last character from a string for instance in 123-4- when I delete 4 it should display 123- using jQuery.

2010/11/29
1
183
11/29/2010 11:11:42 PM

Accepted Answer

You can also try this in plain javascript

"1234".slice(0,-1)

the negative second parameter is an offset from the last character, so you can use -2 to remove last 2 characters etc

2010/11/29
463
11/29/2010 11:00:32 PM

Why use jQuery for this?

str = "123-4"; 
alert(str.substring(0,str.length - 1));

Of course if you must:

Substr w/ jQuery:

//example test element
 $(document.createElement('div'))
    .addClass('test')
    .text('123-4')
    .appendTo('body');

//using substring with the jQuery function html
alert($('.test').html().substring(0,$('.test').html().length - 1));
2010/11/29

@skajfes and @GolezTrol provided the best methods to use. Personally, I prefer using "slice()". It's less code, and you don't have to know how long a string is. Just use:

//-----------------------------------------
// @param begin  Required. The index where 
//               to begin the extraction. 
//               1st character is at index 0
//
// @param end    Optional. Where to end the
//               extraction. If omitted, 
//               slice() selects all 
//               characters from the begin 
//               position to the end of 
//               the string.
var str = '123-4';
alert(str.slice(0, -1));
2010/11/29

You can do it with plain JavaScript:

alert('123-4-'.substr(0, 4)); // outputs "123-"

This returns the first four characters of your string (adjust 4 to suit your needs).

2010/11/29

Source: https://stackoverflow.com/questions/4308934
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