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How to use background thread in swift?
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I am using your code in xCode 6.0.1 and ios 8.It gives error as "QOS_CLASS_BACKGROUND" return class and it is of type UInt32 and "dispatch_get_global_queue" requires 1st parameter as int so type error is coming.
– Zalak Patel
Oct 29 '14 at 1...
Get login username in java
...ecific. A JVM running on a single-user system might not have a username at all.
– Chinmay Kanchi
Feb 18 '10 at 16:58
8
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What does T&& (double ampersand) mean in C++11?
...[] pt1{new int[10]};
std::unique_ptr<int[]> ptr2{ptr1};// compile error: no copy ctor.
// So we must first cast ptr1 to an rvalue
std::unique_ptr<int[]> ptr2{std::move(ptr1)};
std::unique_ptr<int[]> TakeOwnershipAndAlter(std::unique_ptr<int[]> param,\
int size) ...
Inserting multiple rows in mysql
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When loading a table from a text file, use LOAD DATA INFILE. This is usually 20 times faster than using INSERT statements.
Optimizing INSERT Statements
You can find more tips on how to speed up your insert statements on the link above.
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Convert string with comma to integer
...converting dollars and cents to cents. This method will avoid any rounding errors that might crop up unexpectedly when dealing with floating-point numbers. When a currency amount needs to be shown to the user, the cent amount can be converted to dollars and cents. (Though that is not what the questi...
jQuery How to Get Element's Margin and Padding?
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yeah seems you have to do each individually :( which sucks
– Tom
Sep 14 '11 at 17:37
27
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How to access and test an internal (non-exports) function in a node.js module?
...rted function and testing it using Mocha.
application.js:
function logMongoError(){
console.error('MongoDB Connection Error. Please make sure that MongoDB is running.');
}
test.js:
var rewire = require('rewire');
var chai = require('chai');
var should = chai.should();
var app = rewire('../appli...
Why is the Windows cmd.exe limited to 80 characters wide?
...n 80 column prompt, meaning that increasing the width can cause formatting errors or worse possibly break programs altogether.
As jmucchiello mentioned, MODE will work fine for resizing the window if you feel like it.
Configures system devices.
Serial port: MODE COMm[:] [BAUD=b] [PARITY=p]...
private[this] vs private
...code with private instead of private[this] it will fail with the following error message:
error: covariant type T occurs in contravariant position in type Option[T] of value value_=
class Holder[+T] (initialValue: Option[T]) {
This error occurs because value is a mutable variable on the ...
How to apply bindValue method in LIMIT clause?
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Thanks! But in PHP 5.3, the above code threw an error saying "Fatal error: Cannot pass parameter 2 by reference". It doesn't like casting an int there. Instead of (int) trim($_GET['skip']), try intval(trim($_GET['skip'])).
– Will Martin
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