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What is a Manifest in Scala and when do you need it?
Since Scala 2.7.2 there is something called Manifest which is a workaround for Java's type erasure. But how does Manifest work exactly and why / when do you need to use it?
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What is the difference between Scrum and Agile Development? [closed]
...development.
Each Sprint starts with a planning meeting, where the tasks for the sprint are identified and an estimated commitment for the sprint goal is made. A Sprint ends with a review or retrospective meeting where the progress is reviewed and lessons for the next sprint are identified. During ...
What does the “assert” keyword do? [duplicate]
What does assert do?
For example in the function:
8 Answers
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PHP page redirect [duplicate]
...Also, from the documentation:
Remember that header() must be called before any actual output is sent, either by normal HTML tags, blank lines in a file, or from PHP. It is a very common error to read code with include(), or require(), functions, or another file access function, and have spaces o...
Best practice to validate null and empty collection in Java
...ty and MapUtils.isEmpty() methods which respectively check if a collection or a map is empty or null (i.e. they are "null-safe").
The code behind these methods is more or less what user @icza has written in his answer.
Regardless of what you do, remember that the less code you write, the less code...
Calling class staticmethod within the class body?
...efine the static method using the built-in staticmethod function as a decorator, like this:
5 Answers
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Is !important bad for performance?
...f CSS, and if you don't use them with care you end up in a loop of adding more !important .
9 Answers
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What is the difference between an abstract function and a virtual function?
...on and a virtual function? In which cases is it recommended to use virtual or abstract? Which one is the best approach?
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Why do 64-bit DLLs go to System32 and 32-bit DLLs to SysWoW64 on 64-bit Windows?
...ve the intent was to rename System32, but so many applications hard-coded for that path, that it wasn't feasible to remove it.
SysWoW64 wasn't intended for the dlls of 64-bit systems, it's actually something like "Windows on Windows64", meaning the bits you need to run 32bit apps on a 64bit window...
jQuery “Does not have attribute” selector?
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Use the :not() selector.
$('.funding-plan-container:not([data-timestamp])')
This, by the way, is a valid Selectors API selector, so it isn't specific to jQuery. It'll work with querySelectorAll() and in your CSS (given browser support).
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