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Remove/Add Line Breaks after Specific String using Sublime Text
...t 2 - Is it possible to insert a line break /text return after a specific String in a text file e.g. by using the Find ‣ Replace tool?
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Postgres - FATAL: database files are incompatible with server
...an run the below command to upgrade your postgres data directory retaining all data:
brew postgresql-upgrade-database
The above command is taken from the output of brew info postgres
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XPath: How to select elements based on their value?
...d with respect to a context.
When you need to compare text() or . with a string "Data", it first uses string() function to transform those to string type, than gets a boolean result.
There are two important rule about string():
The string() function converts a node-set to a string by returning ...
Is it possible to dynamically compile and execute C# code fragments?
...harp;
using System.CodeDom.Compiler;
class Program
{
static void Main(string[] args)
{
var csc = new CSharpCodeProvider(new Dictionary<string, string>() { { "CompilerVersion", "v3.5" } });
var parameters = new CompilerParameters(new[] { "mscorlib.dll", "System.Core.dll...
Check if a string contains an element from a list (of strings)
...With LINQ, and using C# (I don't know VB much these days):
bool b = listOfStrings.Any(s=>myString.Contains(s));
or (shorter and more efficient, but arguably less clear):
bool b = listOfStrings.Any(myString.Contains);
If you were testing equality, it would be worth looking at HashSet etc, bu...
Find index of last occurrence of a substring in a string
...ant to find the position (or index) of the last occurrence of a certain substring in given input string str .
9 Answers
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Java String array: is there a size of method?
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Yes, .length (property-like, not a method):
String[] array = new String[10];
int size = array.length;
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Using an integer as a key in an associative array in JavaScript
...at you can not have integer keys. JavaScript will convert the integer to a string. The following outputs 20, not undefined:
var test = {}
test[2300] = 20;
console.log(test["2300"]);
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How do I delete everything in Redis?
... one class there:
public class DataCleaner {
public static void main(String args[]) {
String keyPattern = args[0];
String host = args[1];
int port = Integer.valueOf(args[2]);
int dbIndex = Integer.valueOf(args[3]);
Jedis jedis = new Jedis(host, port);
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Why is the shovel operator (
... += 'quux'
a.object_id #=> 2154742560
So << alters the original string rather than creating a new one. The reason for this is that in ruby a += b is syntactic shorthand for a = a + b (the same goes for the other <op>= operators) which is an assignment. On the other hand << is ...