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?? Coalesce for empty string?
Something I find myself doing more and more is checking a string for empty (as in "" or null) and a conditional operator.
...
php check if array contains all array values from another array
...y1 that are
present in all the arguments. Note that keys are preserved.
http://www.php.net/manual/en/function.array-intersect.php
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What is the difference between Python's list methods append and extend?
What's the difference between the list methods append() and extend() ?
20 Answers
2...
Adding an identity to an existing column
I need to change the primary key of a table to an identity column, and there's already a number of rows in table.
19 Answe...
How to unload a package without restarting R
I'd like to unload a package without having to restart R (mostly because restarting R as I try out different, conflicting packages is getting frustrating, but conceivably this could be used in a program to use one function and then another--although namespace referencing is probably a better idea fo...
How to link Docker services across hosts?
...odes in your cluster
$ swarm list --token=6856663cdefdec325839a4b7e1de38e8
http://<node_ip:2375>
UPDATE 2
The official approach is now to use libswarm see a demo here
UPDATE
There is a nice gist for openvswitch hosts communication in docker using the same approach.
To allow service disc...
MySQL “between” clause not inclusive?
If I run a query with a between clause, it seems to exclude the ending value.
For example:
10 Answers
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Spring Boot Remove Whitelabel Error Page
...mework.web.context.request.ServletRequestAttributes;
import javax.servlet.http.HttpServletRequest;
import java.util.Map;
@RestController
@RequestMapping("/error")
public class SimpleErrorController implements ErrorController {
private final ErrorAttributes errorAttributes;
@Autowired
publi...
Markup XML解析库下载（Markup.h 和 Markup.cpp） - 源码下载 - 清泛网 - 专注C/C++及内核技术
...+ 读写xml方法整理（持续更新）》
Markup.h
// Markup.h: interface for the CMarkup class.
//
// Markup Release 11.1
// Copyright (C) 2009 First Objective Software, Inc. All rights reserved
// Go to www.firstobject.com for the latest CMarkup and EDOM documentation
// Use in comme...
DateTime2 vs DateTime in SQL Server
... dates clearly causes confusion:
Strange datetime behavior in SQL Server
http://bytes.com/topic/sql-server/answers/578416-weird-millisecond-part-datetime-data-sql-server-2000-a
SQL Server 2008 and milliseconds
http://improve.dk/archive/2011/06/16/getting-bit-by-datetime-rounding-or-why-235959-999-...