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How to remove a key from Hash and get the remaining hash in Ruby/Rails?
...erwise if you have required active_support/core_ext/hash (which is automatically required in every Rails application) you can use one of the following methods depending on your needs:
➜ ~ irb
1.9.3p125 :001 > require 'active_support/core_ext/hash' => true
1.9.3p125 :002 > h = {:a =>...
How do I get a list of column names from a psycopg2 cursor?
...ursor description function come out in lowercase. curs.execute("Select userId FROM people") colnames = [desc[0] for desc in curs.description] assert colnames == ['userid']
– dyltini
Nov 13 '18 at 11:14
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API Versioning for Rails Routes
...
If your mind is still intact after this point, let me explain.
First, we call namespace which is super handy for when you want a bunch of routes scoped to a specific path and module that are similarly named. In this case, we want all routes inside the block for our namespace to be scoped to contro...
Retrieve column names from java.sql.ResultSet
...rt java.util.*;
import java.sql.*;
public class MySQLExample {
public void run(String sql) {
// JDBC driver name and database URL
String JDBC_DRIVER = "com.mysql.jdbc.Driver";
String DB_URL = "jdbc:mysql://localhost/demo";
// Database credentials
String USER = "someuser"; // ...
What is the difference between a mutable and immutable string in C#?
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An object is mutable if, once created, its state can be changed by calling various operations on it, otherwise it is immutable.
Immutable String
In C# (and .NET) a string is represented by class System.String. The string keyword is an alias for this class.
The System.String class is immu...
targetContentOffsetForProposedContentOffset:withScrollingVelocity without subclassing UICollectionVi
...for anyone who is reading this in the future.
First I set up the subclass call MyCollectionViewFlowLayout and then in interface builder I changed the collection view layout to Custom and selected my flow layout subclass.
Because you're doing it this way you can't specify items sizes, etc... in IB ...
Can a program depend on a library during compilation but not runtime?
... then you need log4j; there's no way to tell the same code to invoke log4j calls under 1 config, but to ignore log4j calls under some "non-logging" config, right?
– IAmYourFaja
Aug 15 '11 at 20:56
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Deleting an element from an array in PHP
...\array_splice() method
If you use \array_splice() the keys will be automatically reindexed, but the associative keys won't change as opposed to \array_values() which will convert all keys to numerical keys.
Also \array_splice() needs the offset, not the key! as the second parameter.
Code
<?php
...
How to prevent ajax requests to follow redirects using jQuery
...alue. One more feature which one can use in Windows is the WinHttpSetStatusCallback function which can set callback function received some notifications like WINHTTP_CALLBACK_FLAG_REDIRECT.
So it's do possible to implement your requirements in general, but the solution will be probably not independ...
How do I replace a git submodule with another repo?
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This did not work for me. My submodule still pointed to the old URL after this. Any ideas why?
– Arne
Nov 22 '13 at 15:55
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