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Displaying Windows command prompt output and redirecting it to a file
How can I run a command-line application in the Windows command prompt and have the output both displayed and redirected to a file at the same time?
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What reason is there to use null instead of undefined in JavaScript?
I've been writing JavaScript for quite a long time now, and I have never had a reason to use null . It seems that undefined is always preferable and serves the same purpose programmatically. What are some practical reasons to use null instead of undefined ?
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Can't resize UIView in IB
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Thanks that's right. After I upgraded xcode and IB the status bar was on by default. The others have it at off.
– Ayrad
Jul 6 '09 at 15:49
1
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Can anyone explain this strange behavior with signed floats in C#?
...When at least one field is not 8 bytes wide, CanCompareBits returns false, and the code proceeds to use reflection to loop over the fields and call Equals for each value, which correctly treats -0.0 as equal to 0.0.
Here is the source for CanCompareBits from SSCLI:
FCIMPL1(FC_BOOL_RET, ValueTypeHe...
The object 'DF__*' is dependent on column '*' - Changing int to double
...he DBMS (SQL Server).
To see the constraint associated with the table, expand the table attributes in Object explorer, followed by the category Constraints as shown below:
You must remove the constraint before changing the field type.
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What's the difference between the build and create methods in FactoryGirl?
...Girl introduction delineates the difference between FactoryGirl.build() and FactoryGirl.create() :
3 Answers
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How can I undo git reset --hard HEAD~1?
Is it possible to undo the changes caused by the following command? If so, how?
18 Answers
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Reorder / reset auto increment primary key
...g like this in the ID column: 12, 13, 14, 19, 20. I deleted the 15, 16, 17 and 18 rows.
15 Answers
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mongodb group values by multiple fields
...takes an "pipeline" expression as an argument instead of the "localFields" and "foreignFields" options. This then allows a "self-join" with another pipeline expression, in which we can apply $limit in order to return the "top-n" results.
db.books.aggregate([
{ "$group": {
"_id": "$addr",
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Pros and Cons of Interface constants [closed]
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Well, I think that it boils down to the difference between good and good enough.
While in most cases you can avoid the use of constants by implementing other patterns (strategy or perhaps flyweight), there is something to be said for not needing a half dozen other classes to represent ...