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What's the difference between eval, exec, and compile?
...gt; g = dict()
>>> l = dict()
>>> exec('global a; a, b = 123, 42', g, l)
>>> g['a']
123
>>> l
{'b': 42}
(If you display the value of the entire g, it would be much longer, because exec and eval add the built-ins module as __builtins__ to the globals automaticall...
Check existence of input argument in a Bash shell script
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Iulian Onofrei
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answered Jul 20 '13 at 10:26
devnulldevnull
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How to make a new List in Java
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Zoe
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answered May 13 '09 at 15:15
Dan VintonDan Vinton
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How can I convert an image into a Base64 string?
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StaxManStaxMan
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How to start an application using android ADB tools?
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98
Launcher is default. You can simplify to adb shell monkey -p your.app.package.name 1
– Androiderson
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Xcode “The private key for is not installed on this mac - distributing”
...ThomasWThomasW
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C++ Best way to get integer division and remainder
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98
On x86 the remainder is a by-product of the division itself so any half-decent compiler should ...
How can I select an element by name with jQuery?
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Jon EricksonJon Erickson
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jQuery Ajax error handling, show custom exception messages
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98
ServerSide:
doPost(HttpServletRequest request, HttpServletResponse response){
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Foreign keys in mongo?
...xample:
student
{
name: 'Kate Monster',
addresses : [
{ street: '123 Sesame St', city: 'Anytown', cc: 'USA' },
{ street: '123 Avenue Q', city: 'New York', cc: 'USA' }
]
}
Child referencing
Like the student/course example above.
Parent referencing
Suitable for one-to-squillions,...