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Why are flag enums usually defined with hexadecimal values
... None = 0,
Flag1 = 1 << 0,
Flag2 = 1 << 1,
Flag3 = 1 << 2,
Flag4 = 1 << 3,
Flag5 = 1 << 4
}
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What is the default form HTTP method?
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173
It's GET.
Take a look W3C Superceded Recommendation 17.3 The FORM element.
Excerpt:
<!ATT...
How do you write a migration to rename an ActiveRecord model and its table in Rails?
...had to go and rename the model declaration file manually.
Edit:
In Rails 3.1 & 4, ActiveRecord::Migration::CommandRecorder knows how to reverse rename_table migrations, so you can do this:
class RenameOldTableToNewTable < ActiveRecord::Migration
def change
rename_table :old_table_nam...
Creating a simple XML file using python
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314
These days, the most popular (and very simple) option is the ElementTree API,
which has been i...
How do I convert from stringstream to string in C++?
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edited Sep 15 '19 at 13:10
Ayxan Haqverdili
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How to get a specific version of a file in Mercurial?
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153
I think you want hg revert -r<rev> <file> (this will change that file to be as it wa...
Call by name vs call by value in Scala, clarification needed
...5
frhack
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answered Nov 12 '12 at 1:40
dhgdhg
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Use IntelliJ to generate class diagram
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edited Aug 3 '18 at 18:27
answered Jan 20 '12 at 14:29
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How can I change the current URL?
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edited Sep 5 '13 at 2:25
answered Oct 2 '10 at 18:10
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How to implement if-else statement in XSLT?
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320
You have to reimplement it using <xsl:choose> tag:
<xsl:choose>
&...