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What does send() do in Ruby?
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send sends a message to an object instance and its ancestors in class hierarchy until some met...
使用TokuMX配置Replica Set集群 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
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内容如下：
logpath=/home/apps/tokumx/logs/tokumx.log
cacheSize=10G
oplogSize=10240
fork = true
port = 27017
dbpath=/home/apps/tokumx/data
replSet=ReplSetName
expireOplogDays=14
./mongod -f tokumx.conf 启动，可使用客户端工具MongoVUE连接访问。
以下介绍TokuMX ...
std::unique_lock or std::lock_guard?
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answered Dec 11 '13 at 10:39
Stephan DollbergStephan Dollberg
25.5k1010 gold badges7070 silver badges102102 bronze badges
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How to normalize an array in NumPy?
...umpy as np
from sklearn.preprocessing import normalize
x = np.random.rand(1000)*10
norm1 = x / np.linalg.norm(x)
norm2 = normalize(x[:,np.newaxis], axis=0).ravel()
print np.all(norm1 == norm2)
# True
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SQL SERVER: Get total days between two dates
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SQL Server DateDiff
DECLARE @startdate datetime2 = '2007-05-05 12:10:09.3312722';
DECLARE @enddate datetime2 = '2009-05-04 12:10:09.3312722';
SELECT DATEDIFF(day, @startdate, @enddate);
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powershell 2.0 try catch how to access the exception
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answered Feb 2 '10 at 8:47
stejstej
25.7k1111 gold badges6262 silver badges9696 bronze badges
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Check if an array contains any element of another array in JavaScript
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answered Oct 6 '16 at 10:30
Paul GrimshawPaul Grimshaw
12.6k55 gold badges3232 silver badges5353 bronze badges
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How to dump a dict to a json file?
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answered Sep 26 '14 at 10:22
moobimoobi
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When should use Readonly and Get only properties
...Fuel; // Will work
f.Fuel = a; // Does not compile
f.FillFuelTank(10); // Value is changed from the method's code
}
Setting the private field of your class as readonly allows you to set the field value only once (using an inline assignment or in the class constructor).
You will not be abl...