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Is there a way that I can check if a data attribute exists?
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edited Aug 22 '18 at 12:53
James McCormack
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Throw keyword in function's signature
What is the technical reason why it is considered bad practice to use the C++ throw keyword in a function signature?
7 An...
Multi-Line Comments in Ruby?
...ine comments.
The =begin and =end must be at the beginning of the line or
it will be a syntax error.
=end
puts "Hello world!"
<<-DOC
Also, you could create a docstring.
which...
DOC
puts "Hello world!"
"..is kinda ugly and creates
a String instance, but I know one guy
with a Smalltalk bac...
JavaScript check if variable exists (is defined/initialized)
Which method of checking if a variable has been initialized is better/correct?
(Assuming the variable could hold anything (string, int, object, function, etc.))
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How do I execute code AFTER a form has loaded?
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To me it seems like the shown handler is executed WHILE the form is loading... am i wrong?
– ckonig
Feb 14 '13 at 15:50
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chrome undo the action of “prevent this page from creating additional dialogs”
...re-enable alerting for debugging. Of course I can close the tab and reload it but Is there a better way?
7 Answers
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What are unit tests, integration tests, smoke tests, and regression tests?
What are unit tests, integration tests, smoke tests, and regression tests? What are the differences between them and which tools can I use for each of them?
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stringstream, string, and char* conversion confusion
...g returned from stringstream.str().c_str() live in memory, and why can't it be assigned to a const char* ?
5 Answers
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What's the difference between a Future and a Promise?
...ise has finally been called CompletableFuture for inclusion in Java 8, and its javadoc explains:
A Future that may be explicitly completed (setting its value and status), and may be used as a CompletionStage, supporting dependent functions and actions that trigger upon its completion.
An exa...
Why CancellationToken is separate from CancellationTokenSource?
...or a rationale of why .NET CancellationToken struct was introduced in addition to CancellationTokenSource class. I understand how the API is to be used, but want to also understand why it is designed that way.
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