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Using 'return' in a Ruby block
...ng(*args, &block)
irb(main):002:1> value = block.call
irb(main):003:1> puts "value=#{value}"
irb(main):004:1> end
=> nil
irb(main):005:0>
irb(main):006:0* thing {
irb(main):007:1* return 6 * 7
irb(main):008:1> }
LocalJumpError: unexpected return
from (irb):7:in `b...
How do you get a query string on Flask?
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edited Aug 3 '12 at 2:09
Sean Vieira
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使用App Inventor 2 控制物联网设备/低功耗蓝牙设备(BLE) · App Inventor 2 中文网
...，特征也通过其自己唯一的数字 UUID [7] 来区分自己。 图 3 显示了服务和特征的层次性质，其中特征位于 GATT 事务的最低级别。 客户端依靠某个特征为其赋予数据值，以便在与服务器交换数据时可以进行读写。
图 3：BLE GATT 通...
How to parse freeform street/postal address out of text, and into components
...,5}\s+)(?![a|p]m\b)(([a-zA-Z|\s+]{1,5}){1,2})?([\s|,|.]+)?(([a-zA-Z|\s+]{1,30}){1,4})(court|ct|street|st|drive|dr|lane|ln|road|rd|blvd)([\s|,|.|;]+)?(([a-zA-Z|\s+]{1,30}){1,2})([\s|,|.]+)?\b(AK|AL|AR|AZ|CA|CO|CT|DC|DE|FL|GA|GU|HI|IA|ID|IL|IN|KS|KY|LA|MA|MD|ME|MI|MN|MO|MS|MT|NC|ND|NE|NH|NJ|NM|NV|NY|O...
How can I delete a newline if it is the last character in a file?
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edited Apr 8 '15 at 16:53
mklement0
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answe...
How do you attach and detach from Docker's process?
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edited Jan 31 at 19:28
Josh Correia
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How can I update a single row in a ListView?
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edited Sep 8 '15 at 13:30
Sufian
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answer...
What causes a java.lang.ArrayIndexOutOfBoundsException and how do I prevent it?
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300
Your first port of call should be the documentation which explains it reasonably clearly:
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ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
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30 Answers
30
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How do I include a file over 2 directories back?
...hp to include a file that is 2 directories back, but how do you do it for 3 directories back?
Does this make sense?
I tried .../index.php but it isn't working.
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