trim

In my application, I get a number having leading zeros. I am trying to trim the leading zeros and get the actual number. I tried using /a switch which considers right side of the assignment as an arithmetic expression. So I tried: SET /a N = 00027 The above gave me the output of 23 which is the decimal equivalent of octal number 27 . Then I found this solution online. SET N = 00027 SET /a N = 1%N%-(11%N%-1%N%)/10 This seems working and is giving the output 27 . Is there much easier way to trim the leading zeros in a batch file? The method you found is very good. It supports numbers up to 99

Example output 1. test,test,test,test,test, 2. test,test,test,, 3. test,test,,, 4. test,,,,, I tried use implode according to my previous question but It's trim only last comma. How to remove any last commas? rtrim('test,,,,,', ','); See the manual . rtrim for example: $str = 'foo,bar,blah,bleh,'; echo rtrim($str,','); // foo,bar,blah,bleh completely different way: $str = "1,2,3,4,"; $str = substr($str,0,strlen($str)-1); 来源： https://stackoverflow.com/questions/3120398/php-how-to-remove-any-last-commas

Are there any ways to automatically trim an MP3 uploaded to a website to 30 seconds (or some other length) in PHP? If not, is there any good 3rd party services that could be integrated (transparently to the user) to achieve the same effect? Thanks. You could try the MP3 Class on PHPClasses. It features the following example: require_once './class.mp3.php'; $mp3 = new mp3; $mp3->cut_mp3('input.mp3', 'output.mp3', 0, -1, 'frame', false); In this case, the 'frame' can be substituted with 'second' to base the cut on a time-frame. I put together a script that outputs a 30 second clip of an MP3 file

I'm working with a third-party database in which all text values are stored as char(n) . Some of these text values are primary keys, whereas others are just normal human-readable text. For the latter, I want retrieved values to be automatically trimmed. I know I can add Trim to all of my LINQ to Entities queries, but this is messy, unreliable and unmaintainable. I would like to somehow configure Entity Framework to automatically trim values retrieved from specific columns. However, I don't know how to do this. I'm using EF's fluent API. The closest thing I've thought of so far is creating

(have searched, but not been able to find a simple solution to this one either here, or in Cocoa docs) Q. How can I trim all leading whitespace only from an NSString? (i.e. leaving any other whitespace intact.) Unfortunately, for my purposes, NSString's stringByTrimmingCharactersInSet method works on both leading and trailing. Mac OS X 10.4 compatibility needed, manual GC. John Franklin This creates an NSString category to do what you need. With this, you can call NSString *newString = [mystring stringByTrimmingLeadingWhitespace]; to get a copy minus leading whitespace. (Code is untested, may

This question already has an answer here: Trim string in JavaScript? 25 answers What's a clean and efficient JavaScript implementation to strip leading and trailing spaces from a string? For example: " dog" "dog " " dog " " dog " all get turned into "dog" David Andres Use this: if(typeof(String.prototype.trim) === "undefined") { String.prototype.trim = function() { return String(this).replace(/^\s+|\s+$/g, ''); }; } The trim function will now be available as a first-class function on your strings. For example: " dog".trim() === "dog" //true EDIT : Took J-P's suggestion to combine the regex

I want to replace all occurrences of white space characters (space, tab, newline) in JavaScript. How to do so? I tried: str.replace(/ /gi, "X") You want \s Matches a single white space character, including space, tab, form feed, line feed. Equivalent to [ \f\n\r\t\v\u00a0\u1680\u2000-\u200a\u2028\u2029\u202f\u205f\u3000\ufeff] in Firefox and [ \f\n\r\t\v] in IE . str = str.replace(/\s/g, "X"); \s is a meta character that covers all white space. You don't need to make it case-insensitive — white space doesn't have case. str.replace(/\s/g, "X") We can also use this if we want to change all

I have a string, 12345.00 , and I would like it to return 12345.0 . I have looked at trim , but it looks like it is only trimming whitespace and slice which I don't see how this would work. Any suggestions? Jon Erickson You can use the substring function: var str = "12345.00"; str = str.substring(0, str.length - 1); // "12345.0" This is the accepted answer, but as per the conversations below, the slice syntax is much clearer: var str = "12345.00"; str = str.slice(0, -1); // "12345.0" You can use slice ! You just have to make sure you know how to use it. Positive #s are relative to the