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“FOUNDATION_EXPORT” vs “extern”
I would like to ask what's the reason behind using FOUNDATION_EXPORT instead of extern in Objective C projects.
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How to check if variable's type matches Type stored in a variable
...all contain significant omissions.
The is operator does not check if the runtime type of the operand is exactly the given type; rather, it checks to see if the runtime type is compatible with the given type:
class Animal {}
class Tiger : Animal {}
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object x = new Tiger();
bool b1 = x is Tiger; ...
See what has been installed via MacPorts
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Use port installed to list all of your ports.
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Remove multiple attributes with jQuery's removeAttr
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Yes :
.removeAttr('height align style')
From the documentation :
as of version 1.7, it can be a space-separated list of attributes.
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Select Row number in postgres
How to select row number in postgres.
1 Answer
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What is a Proxy in Doctrine 2?
I just finished reading all the Doctrine 2 documentation, I started my own sandbox, I understood most of the principes, but there is still a question and I couldn't find any complete explanation in the doc.
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Using Rails serialize to save hash to database
I'm try to save a hash mapping ids to a number of attempts in my rails app. My migration to the database to accommodate this new column:
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jQuery - If element has class do this
I need an jQuery script that will see if any element has an specific class and do an action like change position.
1 Answer
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How to change a PG column to NULLABLE TRUE?
How can I accomplish this using Postgres? I've tried the code below but it doesn't work:
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How to remove newlines from beginning and end of a string?
...followed by a blank line. What's the best way to keep the part with text, but remove the whitespace newline from the end?
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