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How do I syntax check a Bash script without running it?
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I also enable the 'u' option on every bash script I write in order to do some extra checking:
set -u
This will report the usage of uninitialized variables, like in the following script 'check_init.sh'
#!/bin/sh
set -u
message=hello
echo $mesage
Running the script :
$ check_init...
Better way to sum a property value in an array
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Updated Answer
Due to all the downsides of adding a function to the Array prototype, I am updating this answer to provide an alternative that keeps the syntax similar to the syntax originally requested in the question.
class TravellerCollection e...
What does “SyntaxError: Missing parentheses in call to 'print'” mean in Python?
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If your code should work in both Python 2 and 3, you can achieve this by loading this at the beginning of your program:
from __future__ import print_function # If code has to work in Python 2 and 3!
Then you can print in the Python 3 way:
print("python")
If you want to print something w...
Printing object properties in Powershell
... If so, I think you have to do something additional that what is stated in order to actually print it to the console (ie: Write-Output <something-something>)
– Fractal
Mar 12 '19 at 22:07
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Background color not showing in print preview
...eeded to add the !important attribute onto the the background-color tag in order for it to show up, did not need the webkit part:
background-color: #f5f5f5 !important;
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Is it possible to update a localized storyboard's strings?
...bartycrouch update
This will do exactly what you were looking for.
In order to keep your Storyboards/XIBs Strings files updated over time I highly recommend adding a build script (instructions on how to add a build script here):
if which bartycrouch > /dev/null; then
bartycrouch update ...
Fastest way to copy file in node.js
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I used this method and all I got was a blank file on write. any ideas why? fs.createReadStream('./init/xxx.json').pipe(fs.createWriteStream('xxx.json'));
– Timmerz
Aug 20 '14 at 15:23
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How can I dynamically add a directive in AngularJS?
... };
}
};
});
You'll notice I refactored your directive too in order to follow some best practices. Let me know if you have questions about any of those.
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How to extract one column of a csv file
...le DOS style line breaks (CRLF i.e. "\r\n") and UTF-16 encoding (with byte order mark) to "\n" and UTF-8 (without byte order mark), respectively. Standard CSV files use CRLF as line break, see Wikipedia.
If the input may contain multiline fields, you can use the following script. Note the use of sp...
Return None if Dictionary key is not available
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@BjörnPollex This is by far the elegant one, Any clue on how to extend this to support any depth? I mean making foo['bar']['test']['sss'] to return None instead of exception, After one depth it start giving TypeError instead of KeyError
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