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CSS Box Shadow Bottom Only [duplicate]

... Do this: box-shadow: 0 4px 2px -2px gray; It's actually much simpler, whatever you set the blur to (3rd value), set the spread (4th value) to the negative of it. share | impr...
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How to validate a url in Python? (Malformed or not)

... Actually, I think this is the best way. from django.core.validators import URLValidator from django.core.exceptions import ValidationError val = URLValidator(verify_exists=False) try: val('http://www.google.com') except Val...
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Generating v5 UUID. What is name and namespace?

...1. Only 128-bits are available and 5 bits are used to specify the type, so all of the hash bits don't make it into the UUID. (Also MD5 is considered cryptographically broken, and SHA1 is on its last legs, so don't use this to verify data that needs to be "very secure"). That said, it gives you a wa...
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Remove rows with all or some NAs (missing values) in data.frame

...G00000221312 0 1 2 3 2 na.omit is nicer for just removing all NA's. complete.cases allows partial selection by including only certain columns of the dataframe: > final[complete.cases(final[ , 5:6]),] gene hsap mmul mmus rnor cfam 2 ENSG00000199674 0 2 2 ...
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Is there a way to only install the mysql client (Linux)?

...ll the server component as it will try to install mariadb: mariadb.x86_64 : A community developed branch of MySQL – berniey May 18 '16 at 21:08 3 ...
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UILabel Align Text to center

... code: // Deprecated: use NSTextAlignment enum in UIKit/NSText.h typedef NS_ENUM(NSInteger, UITextAlignment) { UITextAlignmentLeft = 0, UITextAlignmentCenter, UITextAlignmentRight, // could add justified in future } NS_DEPRECATED_IOS(2_0,6_0); – a...
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How to check for file existence [duplicate]

Is there a Ruby class/method where I could pass "a full path", home/me/a_file.txt , to identify whether it is a valid file path? ...
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解决:ORA-00054:资源正忙,要求指定NOWAIT - 数据库(内核) - 清泛网 - 专注...

...出所有被锁的对象,定位出哪个回话占用 select l.session_id,o.owner,o.object_name from v$locked_object l,dba_objects o where l.object_id=o.object_id 结果: session_id owner object_name 158 SA TEST_1 ... 对比想要创建的索引,定位哪些会话需要被删除 2:...
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App inventor可以在不开发拓展的情况下实现实时定位与导航吗? - App应用开...

...个站点,会显示它的站点信息等等试试呗,试过才知道{:8_358:}。有任何新的发现也欢迎分享到社区哦{:8_357:}
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What happens if i return before the end of using statement? Will the dispose be called?

... Yes, Dispose will be called. It's called as soon as the execution leaves the scope of the using block, regardless of what means it took to leave the block, be it the end of execution of the block, a return statement, or an exception. As @Noldor...