大约有 13,065 项符合查询结果（耗时：0.0312秒） [XML]
Create array of symbols
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The original answer was written back in September '11, but, starting from Ruby 2.0, there is a shorter way to create an array of symbols! This literal:
%i[address city state postal country]
will do exactly what you want.
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What does -XX:MaxPermSize do?
Specifically, why would it help to fix a PermGen OutOfMemoryError issue?
3 Answers
3
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Get TransactionScope to work with async / await
I'm trying to integrate async / await into our service bus.
I implemented a SingleThreadSynchronizationContext based on this example http://blogs.msdn.com/b/pfxteam/archive/2012/01/20/10259049.aspx .
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Python Pandas merge only certain columns
Is it possible to only merge some columns? I have a DataFrame df1 with columns x, y, z, and df2 with columns x, a ,b, c, d, e, f, etc.
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How does OpenID authentication work?
I am a little curious to know about how OpenID authentication works.
4 Answers
4
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How add “or” in switch statements?
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By stacking each switch case, you achieve the OR condition.
switch(myvar)
{
case 2:
case 5:
...
break;
case 7:
case 12:
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break;
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}
share...
How can I do SELECT UNIQUE with LINQ?
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The Distinct() is going to mess up the ordering, so you'll have to the sorting after that.
var uniqueColors =
(from dbo in database.MainTable
where dbo.Property == true
select dbo.Color.Name).Distinct().Or...
What is a “Bitmap heap scan” in a query plan?
... the principle of "Bitmap heap scan", I know this often happens
when I execute a query with OR in the condition.
1 Answer...
Why does [5,6,8,7][1,2] = 8 in JavaScript?
I can't wrap my mind around this quirk.
3 Answers
3
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SQL set values of one column equal to values of another column in the same table
I have a table with two DATETIME columns.
5 Answers
5
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