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Difference between socket and websocket?
I'm building web app that needs to communicate with another application using socket connections. This is new territory for me, so want to be sure that sockets are different than websockets . It seems like they're only conceptually similar.
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How to interpret API documentation function parameters?
...man style syntax conventions, to the modern API/namespace conventions.
Typically, the type of person who works with API, will have some background in development or at the least a 'power user'. These types of users are used to such syntax conventions and it makes more sense for the API document to f...
Xcode 6 / Beta 4: using bridging headers with framework targets is unsupported
...y headers to your umbrella file"? Thanks.
– Allan Macatingrao
May 7 '15 at 3:59
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Ignore mouse interaction on overlay image
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Safari is ok, according to this caniuse.com/#search=pointer-events, only Opera and iE are out
– Logic Wreck
Oct 24 '12 at 14:15
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How do I move an existing window to a new tab?
... Note that help Ctrl-W_T takes you to the help entry of Ctrl-W_t (lower case), however, further down the page is the Ctrl-W_T entry (with capital T), saying "Move the current window to a new tab page...."
– Rabarberski
Oct 19 '12 at 10:04
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How to map calculated properties with JPA and Hibernate
...This property is not mapped to a database column . Instead, it should be calculated by the database with a COUNT() function operating on the join of my Java bean and its children. It would be even better if this property could be calculated on demand / "lazily", but this is not mandatory.
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npm install vs. update - what's the difference?
What is the practical difference between npm install and npm update ? When should I use which?
5 Answers
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What happens if i return before the end of using statement? Will the dispose be called?
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Yes, Dispose will be called. It's called as soon as the execution leaves the scope of the using block, regardless of what means it took to leave the block, be it the end of execution of the block, a return statement, or an exception.
As @Noldo...
extract part of a string using bash/cut/split
...the end. One instance means shortest and two instances means longest.
You can get substrings based on position using numbers:
${MYVAR:3} # Remove the first three chars (leaving 4..end)
${MYVAR::3} # Return the first three characters
${MYVAR:3:5} # The next five characters after removing the fir...
How to override to_json in Rails?
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You are getting ArgumentError: wrong number of arguments (1 for 0) because to_json needs to be overridden with one parameter, the options hash.
def to_json(options)
...
end
Longer explanation of to_json, as_json, and rendering:
In ActiveSupport 2.3.3, as_json was added to address issue...