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Magic number in boost::hash_combine
...ash_combine template function takes a reference to a hash (called seed ) and an object v . According to the docs , it combines seed with the hash of v by
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How to show line number when executing bash script
I have a test script which has a lot of commands and will generate lots of output, I use set -x or set -v and set -e , so the script would stop when error occurs. However, it's still rather difficult for me to locate which line did the execution stop in order to locate the problem.
Is there a m...
Testing javascript with Mocha - how can I use console.log to debug a test?
...-require should
-R spec
--ui bdd
Hmm..just tested without any mocha.opts and console.log still works.
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JavaScript equivalent of jQuery's extend method
...umerable own properties from one or more source objects to a target object and returns the target object.
Object.assign(target, ...sources)
It works in all desktop browsers except IE (but including Edge).
It has mitigated mobile support.
See for yourself here:
https://developer.mozilla.org/en-US...
The most sophisticated way for creating comma-separated Strings from a Collection/Array/List?
During my work with databases I noticed that I write query strings and in this strings I have to put several restrictions in the where-clause from a list/array/collection. Should look like this:
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Write text files without Byte Order Mark (BOM)?
...tEnc); // open file with encoding
// write data here
file.Close(); // save and close it
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Precision String Format Specifier In Swift
... This is unnecessarily complicated. realityone's answer works and is much more concise.
– Steven Marlowe
Dec 20 '14 at 5:41
9
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Multiple columns index when using the declarative ORM extension of sqlalchemy
According to the documentation and the comments in the sqlalchemy.Column class, we should use the class sqlalchemy.schema.Index to specify an index that contains multiple columns.
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How can I search for a multiline pattern in a file?
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This is much easier to understand and uses awk that comes with most *nix systems.
– Ali Karbassi
Jan 28 '11 at 3:12
25
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Exception 'open failed: EACCES (Permission denied)' on Android
...wrong place. This is right:
<manifest>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
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<application>
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<activity>
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</activity>
</application>...