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MongoDB副本集详解 优于以往的主从模式 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...点成为主节点。
Hidden:这类节点是不能够被客户端制定IP引用，也不能被设置为主节点，但是可以投票，一般用于备份数据。
Delayed：可以指定一个时间延迟从primary节点同步数据。主要用于备份数据，如果实时同步，误删除...
Regular expression to allow spaces between words
...f the following cases that one would not usually mean to match:
An empty string, "".
A string comprised entirely of spaces, " ".
A string that leads and / or trails with spaces, " Hello World ".
A string that contains multiple spaces in between words, "Hello World".
Origi...
How to run a single test with Mocha?
... there's a catch: grep option needs to be a ´RegExp()´ object. If it's a string, it will be escaped.
– h-kippo
Nov 21 '14 at 7:42
1
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Create Generic method constraining T to an Enum
... better implementation should be something like this:
public T GetEnumFromString<T>(string value) where T : struct, IConvertible
{
if (!typeof(T).IsEnum)
{
throw new ArgumentException("T must be an enumerated type");
}
//...
}
This will still permit passing of value type...
Proper way to declare custom exceptions in modern Python?
...er standard other exception classes have, so that (for instance) any extra string I include in the exception is printed out by whatever tool caught the exception.
...
Base64 encoding and decoding in client-side Javascript
... there any methods in JavaScript that could be used to encode and decode a string using base64 encoding?
13 Answers
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How do I “decompile” Java class files? [closed]
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In case one installed the Eclipse java decompiler plugin on Eclipse Juno, and Eclipse started hanging on Marketplace DND Initialization forcing to kill the whole process: removing the jd.*.jar from Eclipse plugins directory just fixed it for me.
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PostgreSQL database default location on Linux
..." (data directories). Of course, each instance would listen on its own TCP/IP port.
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Ruby: require vs require_relative - best practice to workaround running in both Ruby =1.
...olute/path/to/file.rb, what happens is that expand_path will construct the string /absolute/path/to/file.rb/../relative/path, and then apply a rule that says that .. should remove the path component before it (file.rb in this case), returning /absolute/path/to/relative/path.
Is this best practice? ...
T-SQL: Opposite to string concatenation - how to split string into multiple records [duplicate]
I have seen a couple of questions related to string concatenation in SQL.
I wonder how would you approach the opposite problem: splitting coma delimited string into rows of data:
...