trim

In javascript, how to I do a right trim? I have the following: var s1 = "this is a test~"; var s = s1.rtrim('~') but was not successful Use a RegExp. Don't forget to escape special characters. s1 = s1.replace(/~+$/, ''); //$ marks the end of a string // ~+$ means: all ~ characters at the end of a string You can modify the String prototype if you like. Modifying the String prototype is generally frowned upon, but I personally prefer this method, as it makes the code cleaner IMHO. String.prototype.rtrim = function(s) { return this.replace(new RegExp(s + "*$"),''); }; Then call... var s1 = "this

I have several strings that look like this: "((String1))" They are all different lengths. How could I remove the parentheses from all these strings in a loop? Arup Rakshit Do as below using String#tr : "((String1))".tr('()', '') # => "String1" If you just want to remove the first two characters and the last two, then you can use negative indexes on the string: s = "((String1))" s = s[2...-2] p s # => "String1" If you want to remove all parentheses from the string you can use the delete method on the string class: s = "((String1))" s.delete! '()' p s # => "String1" Using String#gsub with

I know there are several ways to do this in Java and C that are nice, but in C++ I can't seem to find a way to easily implement a string trimming function. This is what I currently have: string trim(string& str) { size_t first = str.find_first_not_of(' '); size_t last = str.find_last_not_of(' '); return str.substr(first, (last-first+1)); } but whenever I try and call trim(myString); I get the compiler error /tmp/ccZZKSEq.o: In function `song::Read(std::basic_ifstream<char, std::char_traits<char> >&, std::basic_ifstream<char, std::char_traits<char> >&, char const*, char const*)': song.cpp:(

In Java, I have a String like this: " content ". Will String.trim() remove all spaces on these sides or just one space on each? LukeH All of them . Returns : A copy of this string with leading and trailing white space removed, or this string if it has no leading or trailing white space. ~ Quoted from Java 1.5.0 docs (But why didn't you just try it and see for yourself?) From the source code (decompiled) : public String trim() { int i = this.count; int j = 0; int k = this.offset; char[] arrayOfChar = this.value; while ((j < i) && (arrayOfChar[(k + j)] <= ' ')) ++j; while ((j < i) &&

I need to trim New Line (Chr(13) and Chr(10) and Tab space from the beginning and end of a String) in an Oracle query. I learnt that there is no easy way to trim multiple characters in Oracle. "trim" function trims only single character. It would be a performance degradation if i call trim function recursivelly in a loop using a function. I heard regexp_replace can match the whitespaces and remove them. Can you guide of a reliable way to use regexp_replace to trim multiple tabspaces or new lines or combinations of them in beginning and end of a String. If there is any other way, Please guide

This question already has an answer here: How to trim white spaces of array values in php 11 answers If I have this array: array(" hey ", "bla ", " test"); and I want to trim all of them, How can I do that? The array after the trim: array("hey", "bla", "test"); array_map() is what you need: $result = array_map('trim', $source_array); array_map() applies a given callback to every value of an array and return the results as a new array. $array = array_map('trim', $array); 来源： https://stackoverflow.com/questions/6769464/how-can-i-trim-all-strings-in-an-array

In user's console I have bash : $ echo $SHELL /bin/bash $ bash --version GNU bash, version 4.2.46(1)-release (x86_64-redhat-linux-gnu) I have code in file test.sh: $ cat test.sh aaa='---aa-aa---' echo "${aaa}" echo 'does not work...' # trim "-" echo ${aaa/+(-)} echo ${aaa%%+(-)} echo 'works for one symbol...' echo ${aaa%-} echo ${aaa/-} The last two rows work fine but previous ones. $ bash test.sh ---aa-aa--- does not work... ---aa-aa--- ---aa-aa--- works for one symbol... ---aa-aa-- --aa-aa--- In the same time, if you would try to make this console it works: $ aaa='---aa-aa---' $ echo ${aaa/+

I have sound files in my document directory folder and i want to trim that sound file. How to do that? you can use Extended Audio File Services. have a look at the reference for ExtAudioFileRead & ExtAudioFileWrite (they have sample code) then you can open one audio file read it, trim it and then write the new one.go here http://developer.apple.com/library/ios/#documentation/MusicAudio/Reference/ExtendedAudioFileServicesReference/Reference/reference.html Dumb Code What do you mean by trim ? You want to get chunk for aduio of specific duration from with in main Audio file ? might be this post