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Creating JS object with Object.create(null)?
...or.prototype == Object.prototype while Object.create(null) doesn't inherit from anything and thus has no properties at all.
In other words: A javascript object inherits from Object by default, unless you explicitly create it with null as its prototype, like: Object.create(null).
{} would instead b...
Gdb print to file instead of stdout
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I've found that you can redirect the output from gdb to a file via the run command:
(gdb) run > outfile
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JPA: unidirectional many-to-one and cascading delete
... the parent with the child in both directions. Cascading REMOVE operations from the parent to the child will require a relation from the parent to the child (not just the opposite).
You'll therefore need to do this:
Either, change the unidirectional @ManyToOne relationship to a bi-directional @Ma...
AttributeError: 'module' object has no attribute
...his error by referencing an enum which was imported in a wrong way, e.g.:
from package import MyEnumClass
# ...
# in some method:
return MyEnumClass.Member
Correct import:
from package.MyEnumClass import MyEnumClass
Hope that helps someone
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How to generate a random string in Ruby
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BTW SecureRandom was removed from ActiveSupport in version 3.2. From the changelog: "Removed ActiveSupport::SecureRandom in favor of SecureRandom from the standard library".
– Marc
Jan 20 '12 at 21:57
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Best practice: AsyncTask during orientation change
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What if the AsyncTask must be called from a nested Fragment?
– Eduardo Naveda
Jul 23 '14 at 13:38
3
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Better way to check variable for null or empty string?
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Beware false negatives from the trim() function — it performs a cast-to-string before trimming, and thus will return e.g. "Array" if you pass it an empty array. That may not be an issue, depending on how you process your data, but with the code ...
Remove file extension from a file name string
...lename you pass as an argument without the extension, as should be obvious from the name.
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What are all the escape characters?
...cessed before the compiler is run." -- Mark Peters. So they are different from the standard String escapes listed here. Thanks Jan for the comment to this answer
– Josiah Yoder
Sep 23 '15 at 20:34
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How do I return early from a rake task?
... at the beginning, if one of the checks fails I would like to return early from the rake task, I don't want to execute any of the remaining code.
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