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leading zeros in rails

...using a given padding character. str.rjust(integer, padstr=' ') → new_str If integer is greater than the length of str, returns a new String of length integer with str right justified and padded with padstr; otherwise, returns str. some_int = 5 some_int.to_s.rjust(2, '0') # => '05' ...
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Hide separator line on one UITableViewCell

...th.row != self.newCarArray.count-1){ UIImageView *line = [[UIImageView alloc] initWithFrame:CGRectMake(0, 44, 320, 2)]; line.backgroundColor = [UIColor redColor]; [cell addSubview:line]; } for iOS 7 upper versions (including iOS 8) if (indexPath.row == self.newCarArray.count-1) { ...
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Check for internet connection availability in Swift

...unc isConnectedToNetwork() -> Bool { var zeroAddress = sockaddr_in(sin_len: 0, sin_family: 0, sin_port: 0, sin_addr: in_addr(s_addr: 0), sin_zero: (0, 0, 0, 0, 0, 0, 0, 0)) zeroAddress.sin_len = UInt8(sizeofValue(zeroAddress)) zeroAddress.sin_family = sa_family_t(AF_INET)...
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In PowerShell, how do I define a function in a file and call it from the PowerShell commandline?

... What you are talking about is called dot sourcing. And it's evil. But no worries, there is a better and easier way to do what you are wanting with modules (it sounds way scarier than it is). The major benefit of using modules is that you can unload them fr...
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Add list to set?

...rticle. Pythons hashing algorithms are explained on effbot.org and pythons __hash__ function in the python reference. Some facts: Set elements as well as dictionary keys have to be hashable Some unhashable datatypes: list: use tuple instead set: use frozenset instead dict: has no official count...
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How to check if there exists a process with a given pid in Python?

... if the pid is not running, and do nothing otherwise. import os def check_pid(pid): """ Check For the existence of a unix pid. """ try: os.kill(pid, 0) except OSError: return False else: return True ...
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How can I use Guzzle to send a POST request in JSON?

... edited Aug 18 at 7:06 Valor_ 2,49255 gold badges3939 silver badges8787 bronze badges answered Mar 7 '14 at 8:56 ...
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UITableView Setting some cells as “unselectable”

... Kendall is right. Follow Sebastian Celis' answer to prevent didSelectRowAtIndexPath from being called in the first place. You should also set selectionStyle, though, to prevent the highlighting. – Daniel D...
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How can I create a directly-executable cross-platform GUI app using Python?

... list is at http://wiki.python.org/moin/GuiProgramming Single executable (all platforms) PyInstaller - the most active(Could also be used with PyQt) fbs - if you chose Qt above Single executable (Windows) py2exe - used to be the most popular Single executable (Linux) Freeze - works the sa...
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How can I get “Copy to Output Directory” to work with Unit Tests?

... folder and then the tests are executed. The issue I'm having is that not all the files in the Debug/bin directory are copied to the TestResults project. ...