Trim First/Last Characters in String
Remove last four characters
var myString = "abcdefg";
var newString = myString.substr(0, myString.length-4);
// newString is now "abc"Remove first two characters
var myString = "abcdefg";
var newString = myString_2.substr(2);
// newString is now "cdefg"Notes
The substr function can be called on any string with two integer parameters, the second optional. If only one provided, it starts at that integer and moves to the end of the string, chopping off the start. If two parameters provided, it starts at the first number and ends at the second, chopping off the start and end as it is able.
Example
abcdefghijklmnopqrstuvwxyz
The snippet on this page isn’t working for me, and is throwing the following error:
$(‘#chopper’)[0].innerText is undefined
Just a heads up!
i already try to click the button ” Press to chop” but nothing happen, how come?
I think the code snippet for the second example has a typo:
var myString = “abcdefg”;
var newString = myString_2.substr(2);
The second line of this snippet should be:
var newString = myString.substr(2);
Thanks for the tip!