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How do you rename a MongoDB database?
...atabase name, so to rename a set of database files, every single namespace string would have to be rewritten. This impacts:
the .ns file
every single numbered file for the collection
the namespace for every index
internal unique names of each collection and index
contents of system.n...
PHP file_get_contents() and setting request headers
...dn't impersonate the user agent of a browser. Instead, create a User-Agent string for your tool. www-archive.mozilla.org/build/revised-user-agent-strings.html could give some idea about the format.
– Dereckson
Jan 20 '13 at 5:21
...
How to create a JavaScript callback for knowing when an image is loaded?
...
.complete + callback
This is a standards compliant method without extra dependencies, and waits no longer than necessary:
var img = document.querySelector('img')
function loaded() {
alert('loaded')
}
if (img.complete) {
loaded()
} else {
img.addEventListener('load', loaded)
img.a...
Why use ICollection and not IEnumerable or List on many-many/one-many relationships?
...;
namespace StackDemo
{
class Program
{
static void Main(string[] args)
{
List<Person> persons = new List<Person>();
persons.Add(new Person("John",30));
persons.Add(new Person("Jack", 27));
ICollection<Person&g...
Visual Studio (2008) 'Clean Solution' Option
...ompile without clean and overrides everything, but does not get rid of the extras.
Did not look into what rebuild does code wise, just a general observation in case someone else has the same issue.
share
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...
Why should I use 'li' instead of 'div'?
...
By using semantically correct markup, you are embedding extra information in your text. By using ul/li you are communicating to the consuming application that the information is a list, and not just "something" (who knows what) that is some text inside an arbitrary element.
...
Why does the PHP json_encode function convert UTF-8 strings to hexadecimal entities?
...ll get this error: "Warning: json_encode() expects parameter 2 to be long, string given in ...". See CertaiN's answer below for 5.3 solution.
– Octavian Naicu
Oct 1 '14 at 10:03
...
Is #pragma once a safe include guard?
...
To use include guards, there is the extra requirement that you must define a new symbol such as #ifndef FOO_BAR_H, normally for a file such as "foo_bar.h". If you later rename this file, should you adjust the include guards accordingly to be consistent with thi...
getting type T from IEnumerable
...yEnumerable.GetType().GetGenericArguments()[0];
Thusly,
IEnumerable<string> strings = new List<string>();
Console.WriteLine(strings.GetType().GetGenericArguments()[0]);
prints System.String.
See MSDN for Type.GetGenericArguments.
Edit: I believe this will address the concerns in ...
Solving a “communications link failure” with JDBC and MySQL [duplicate]
... connecting to the server. Maybe the problem is because of the wrong query string or too many connections to the database.
So I suggest you to try all the solutions one by one and don't give up!
Here are the solutions that I found on the internet and for each of them, there is at least on person w...