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What is the difference between require_relative and require in Ruby?
...at is relative to the file containing the require_relative statement.
For example, if you have unit test classes in the "test" directory, and data for them under the test "test/data" directory, then you might use a line like this in a test case:
require_relative "data/customer_data_1"
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Assignment inside lambda expression in Python
...e a list of objects and I want to remove all objects that are empty except for one, using filter and a lambda expression.
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How to do what head, tail, more, less, sed do in Powershell? [closed]
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Get-Content (alias: gc) is your usual option for reading a text file. You can then filter further:
gc log.txt | select -first 10 # head
gc -TotalCount 10 log.txt # also head
gc log.txt | select -last 10 # tail
gc -Tail 10 log.txt # also tail (since PSv3)...
How to create a DataTable in C# and how to add rows?
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Don't forget to call dt.AcceptChanges() in case you use DataView with filter other than CurrentRows.
– Salamander2007
Jun 25 '09 at 7:44
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How do I configure different environments in Angular.js?
How do you manage configuration variables/constants for different environments?
10 Answers
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Remove secure warnings (_CRT_SECURE_NO_WARNINGS) from projects by default in Visual Studio
Is there a way to set by default for all projects removing the precompiler secure warnings that come up when using functions like scanf(). I found that you can do it by adding a line in the project option or a #define _CRT_SECURE_NO_WARNINGS in the beginning of the code.
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Rounding up to next power of 2
... want to write a function that returns the nearest next power of 2 number. For example if my input is 789, the output should be 1024. Is there any way of achieving this without using any loops but just using some bitwise operators?
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关于php的socket初探 - PHP - 清泛IT论坛，有思想、有深度
...塞的古老模型：属于同步阻塞 IO 模型，代码如下：
socket_server.php
<?php
/**
* SocketServer Class
* By James.Huang <shagoo#gmail.com>
**/
set_time_limit(0);
class SocketServer
{
private stati...
How to inspect the return value of a function in GDB?
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Great answer dude. I was using "return" which actually forcefully returns from the frame (with no return value obviously), and couldn't work out what was wrong :P
– Matt Joiner
Jul 30 '10 at 17:21
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How do I do an OR filter in a Django query?
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how could this be done programmatically? So, for example be able to have for f in filters: Item.objects.filter(Q(creator=f1) | Q(creator=f2) | ...)
– Alexis
Aug 10 '12 at 20:05
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