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Export database schema into SQL file
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answered Aug 20 '12 at 11:03
Taryn♦Taryn
216k5050 gold badges327327 silver badges380380 bronze badges
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How can I extend typed Arrays in Swift?
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304
For extending typed arrays with classes, the below works for me (Swift 2.2). For example, sort...
java.util.Date to XMLGregorianCalendar
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43
I should like to take a step back and a modern look at this 10 years old question. The classes m...
Finding all objects that have a given property inside a collection [duplicate]
...t;Cat> {
public boolean check(Cat cat) {
return (cat.age == 3); // or whatever, implement your comparison here
}
}
// put this in some class
public static <T> Collection<T> findAll(Collection<T> coll, Checker<T> chk) {
LinkedList<T> l = new Linke...
How to wait for several Futures?
... as follows instead:
val fut1 = Future{...}
val fut2 = Future{...}
val fut3 = Future{...}
val aggFut = for{
f1Result <- fut1
f2Result <- fut2
f3Result <- fut3
} yield (f1Result, f2Result, f3Result)
In this example, futures 1, 2 and 3 are kicked off in parallel. Then, in the for c...
How to use NULL or empty string in SQL
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answered Mar 27 '13 at 15:55
codingbadgercodingbadger
37.7k1212 gold badges8888 silver badges103103 bronze badges
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搭建高可用mongodb集群（二）—— 副本集 - 大数据 & AI - 清泛网 - 专注C/...
...赶紧操作部署一下！
官方推荐的副本集机器数量为至少3个，那我们也按照这个数量配置测试。
1、准备两台机器 192.168.1.136、192.168.1.137、192.168.1.138。 192.168.1.136 当作副本集主节点，192.168.1.137、192.168.1.138作为副本集副本节点。...
Dynamically update values of a chartjs chart
... a line chart: http://jsbin.com/yitep/4/edit
Original Post
As of Nov 2013, there seem to be very few options for updating charts.
There is a good example here (duplicated below) of adding new points to a line chart. Still kind of jumpy but not too bad. However, I think the effect probably de...
Delete column from SQLite table
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edited Mar 2 '16 at 14:38
Tim
36.1k1313 gold badges109109 silver badges129129 bronze badges
answered ...
An efficient way to transpose a file in Bash
...,j];
}
print str
}
}' file
output
$ more file
0 1 2
3 4 5
6 7 8
9 10 11
$ ./shell.sh
0 3 6 9
1 4 7 10
2 5 8 11
Performance against Perl solution by Jonathan on a 10000 lines file
$ head -5 file
1 0 1 2
2 3 4 5
3 6 7 8
4 9 10 11
1 0 1 2
$ wc -l < file
10000
$ time per...