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Check if a subview is in a view
..., when the button with that IBAction is touched again should call removeFromSuperview on that subview added on that IBAction :
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Check if something is (not) in a list in Python
...your list, python will have scanned the list upto the end. This is evident from the timings below:
l = list(range(100001))
s = set(l)
%timeit 100000 in l
%timeit 100000 in s
2.58 ms ± 58.9 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)
101 ns ± 9.53 ns per loop (mean ± std. dev. of...
Scala Programming for Android
...s explained by a friend that this strips out all the unnecessary libraries from the jar files.
I have not documented it, but I found that someone else already has:
http://chneukirchen.org/blog/archive/2009/04/programming-for-android-with-scala.html
Proguard is not the only solution, you might fin...
What's the foolproof way to tell which version(s) of .NET are installed on a production Windows Serv
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User Agent string from the provided URL: Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; WOW64; Trident/6.0). Bu-ga-ga, so, what .NET Framework versions are installed? To achieve expected result need to switch IE to compatible mode.
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How to check if a string in Python is in ASCII?
...f-8, or any other encoding. The source of your string (whether you read it from a file, input from a keyboard, etc.) may have encoded a unicode string in ascii to produce your string, but that's where you need to go for an answer.
Perhaps the question you can ask is: "Is this string the result of e...
How do I know which version of Javascript I'm using?
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alert(jsver);
</script>
My Chrome reports 1.7
Blatantly stolen from: http://javascript.about.com/library/bljver.htm
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Compare given date with today
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for php 4 quit the last '.0' from $var = "2010-01-21 00:00:00.0", otherwise strtotime will return -1
– javier_domenech
Dec 19 '14 at 16:03
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AWS S3: The bucket you are attempting to access must be addressed using the specified endpoint
...souces using the same client in the same region.
If the bucket is created from AWS S3 Console, then check the region from the console for that bucket then create a S3 Client in that region using the endpoint details mentioned in the above link.
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What should I set JAVA_HOME environment variable on macOS X 10.6?
...ive you the Java path specified in your Java preferences. Here's a snippet from my .bashrc file, which sets this variable:
export JAVA_HOME=$(/usr/libexec/java_home)
I haven't experienced any problems with that technique.
Occasionally I do have to change the value of JAVA_HOME to an earlier vers...
搭建高可用mongodb集群（一）——配置mongodb - 大数据 & AI - 清泛网 - 专...
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#日志显示从节点 从主节点同步复制数据
[replslave] repl: from host:192.168.0.1:27017
5、测试主从复制。
在主节点上连接到终端：
mongo 127.0.0.1
#建立test 数据库。
use test;
往testdb表插入数据。
> db.testdb.insert({"test1":"testval1"})
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