Which style of Ruby string quoting do you favour? Up until now I've always used 'single quotes' unless the string contains certain escape sequences or interpolation, in which case I obviously have to use "double quotes". However, is there really any reason not to just use double quoted strings everywhere? ...
This could be the dumbest question ever asked but I think it is a total confusion for a newbie. Can somebody clarify what is meant by immutable? Why is a String immutable? What are the advantages/disadvantages of immutable objects? Why should a mutable object such as StringBuilder be preferred over String and vice-versa? A nice example (...
How could you calculate the minimum width needed to display a string in X lines, given that text should break on whitespace? ...
How can I check if a string ends with a particular character in javascript? example I have a string say var str = "mystring#"; I want to know if that string str is ending with "#". How can I check it? is there a endsWith() method in javascript? one solution I have is take the length of the string and get the last character and check i...
I need to highlight, case insensitively, given keywords in a JavaScript string. For example: highlight("foobar Foo bar FOO", "foo") should return "<b>foo</b>bar <b>Foo</b> bar <b>FOO</b>" I need the code to work for any keyword, and therefore using a hardcoded regular expression like /foo/i is not a sufficient solution. What is the...
Given a word, I've to replace some specific alphabets with some specific letters such as 1 for a, 5 for b etc. I'm using regex for this. I understand that StringBuilder is the best way to deal with this problem as I'm doing a lot of string manipulations. Here is what I'm doing: String word = "foobooandfoo"; String converted = ""; conver...
The following C# code takes 5 minutes to run: int i = 1; string fraction = ""; while (fraction.Length < 1000000) { fraction += i.ToString(); i++; } "Optimising it" like this causes it to run in 1.5 seconds: int i = 1; string fraction = ""; while (fraction.Length < 1000000) { // concatenating strings is much faster for sma...
Given the following simple example: List<string> list = new List<string>() { "One", "Two", "Three", "three", "Four", "Five" }; CaseInsensitiveComparer ignoreCaseComparer = new CaseInsensitiveComparer(); var distinctList = list.Distinct(ignoreCaseComparer as IEqualityComparer<string>).ToList(); It appears the CaseInsensit...
In C# you can use verbatim strings like this: @"\\server\share\file.txt" Is there something similar in JavaScript? ...
I am wondering what is the "best practice" to break long strings in C# source code. Is this string "string1"+ "string2"+ "string3" concatenated during compiling or in run time? ...
This line: strcat(query,*it); (where *it is an iterator to a string) Keeps giving me this error: no matching function for call to \`strcat(char[200], const std::basic_string<char, std::char_traits<char>, std::allocator<char> >&)' I guess it's because strcat takes in a char* while *it is a string. How do I convert it from a str...
Hi, How do I build an escape sequence string in hexadecimal notation. Example: string s = "\x1A"; // this will create the hex-value 1A or dec-value 26 I want to be able to build strings with hex-values between 00 to FF like this (in this example 1B) string s = "\x" + "1B"; // Unrecognized escape sequence Maybe there's another way o...
I'm trying to insert a comment character into a string something similar to this: -CreateVideoTracker VT1 "vt name" becomes -CreateVideoTracker VT1 # "vt name" The VT1 word can actually be anything, so I'm using the regex $line =~ s/\-CreateVideoTracker \w/\-CreateVideoTracker \w # /g; which gives me the result: -CreateVideoTra...
So I'm using python to do some parsing of web pages and I want to split the full web address into two parts. Say I have the address http://www.stackoverflow.com/questions/ask. I would need the protocol and domain (e.g. http://www.stackoverflow.com) and the path (e.g. /questions/ask). I figured this might be solved by some regex, however ...
How can you find the number of occurrences of a particular character in a string using sql? Example: I want to find the number of times the letter ‘d’ appears in this string. declare @string varchar(100) select @string = 'sfdasadhfasjfdlsajflsadsadsdadsa' ...
If you have to use String.Replace() to replace test 50 times, you essentially have to create a new string 50 times. Does StringBuilder.Replace() do this more efficiently? E.g., should I use a StringBuilder if I'm going to be replacing a lot of text, even while I won't be appending any data to it? I'm using .NET, but I assume this woul...
How would I convert a string holding a number into an integer in Perl? ...
If I have a string "12 23 34 56" What's the easiest way to change it to "\x12 \x23 \x34 \x56"? ...
I have a string that I would like to tokenize. But the strtok() function requires my string to be a char*. How can I do this quickly? token = strtok(str.c_str(), " "); fails because it turns it into a const char*, not a char* ...
Someone posted a great little function here the other day that separated the full path of a file into several parts that looked like this: Function BreakDown(Full As String, FName As String, PName As String, Ext As String) As Integer If Full = "" Then BreakDown = False Exit Function End If If InStr(Full, "\") Then FName = Full PN...