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How does Angular $q.when work?
Can some one explain me how does $q.when work in AngularJS?
I'm trying to analyse how $http work and found this:
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How to perform OR condition in django queryset?
I want to write a Django query equivalent to this SQL query:
4 Answers
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How can I truncate a datetime in SQL Server?
...tained at insert/update time, or maintained in application logic. Get this index-breaking, cpu-heavy work off your database.
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Is there a REAL performance difference between INT and VARCHAR primary keys?
...table, with values, say, frpom 1 to 50, but you did NOT put another unique index or key on the state postal code, (and, in my opinion, on the state name as well), then what's to stop someone from entering two rows with different surrogate key values but with the same postal code and/or state name? ...
Break promise chain and call a function based on the step in the chain where it is broken (rejected)
...there is one with such a handler.
This means the following two lines are equivalent:
stepOne().then(stepTwo, handleErrorOne)
stepOne().then(null, handleErrorOne).then(stepTwo)
But the following line is not equivalent to the two above:
stepOne().then(stepTwo).then(null, handleErrorOne)
Angular...
How to delete files/subfolders in a specific directory at the command prompt in Windows
...shell script to clean up the folder and files within C:\Temp source:
del /q "C:\Temp\*"
FOR /D %%p IN ("C:\Temp\*.*") DO rmdir "%%p" /s /q
Create a batch file (say, delete.bat) containing the above command. Go to the location where the delete.bat file is located and then run the command: delete.b...
Lua简明教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...表达式 a < b
__le(a, b) 对应表达式 a <= b
__index(a, b) 对应表达式 a.b
__newindex(a, b, c) 对应表达式 a.b = c
__call(a, ...) 对应表达式 a(...)
“面向对象”
上面我们看到有__index这个重载...
what is the difference between ?:, ?! and ?= in regex?
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The difference between ?= and ?! is that the former requires the given expression to match and the latter requires it to not match. For example a(?=b) will match the "a" in "ab", but not the "a" in "ac". Whereas a(?!b) will match the "a" in "ac", but not the "a" in "ab".
The di...
How do I clear the std::queue efficiently?
I am using std::queue for implementing JobQueue class. ( Basically this class process each job in FIFO manner).
In one scenario, I want to clear the queue in one shot( delete all jobs from the queue).
I don't see any clear method available in std::queue class.
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Simplest way to do a recursive self-join?
What is the simplest way of doing a recursive self-join in SQL Server? I have a table like this:
5 Answers
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