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What is recursion and when should I use it?
...ation which can eliminate some classes of stack overflow. Put succinctly: if a function's return expression is simply the result of a function call, then you don't need to add a new level onto the stack, you can reuse the current one for the function being called. Regrettably, few imperative langu...
Undo part of unstaged changes in git
... can use git checkout -p, which lets you choose individual hunks from the diff between your working copy and index to revert. Likewise, git add -p allows you to choose hunks to add to the index, and git reset -p allows you to choose individual hunks from the diff between the index and HEAD to back o...
Finding duplicate values in MySQL
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But how is this useful if you can't get the IDs of the rows with duplicate values? Yes, you can do a new query matching for each duplicate value, but is it possible to simply list the duplicates?
– NobleUplift
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Checking a Python module version at runtime
...ernative, I'd like to suggest that you don't check at run time (don't know if that's a hard requirement or not). For the python stuff I write that has external dependencies (3rd party libraries), I write a script that users can run to check their python install to see if the appropriate versions of...
Total number of items defined in an enum
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System.Enum.GetNames, if you aren't already including the System namespace.
– Brett Pennings
Feb 3 '15 at 2:55
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angularJS: How to call child scope function in parent scope
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That's pretty cool! But, what if you don't (want to) know where the caller scope is (I mean in $scope.$parent or in $scope.$parent.$parent, etc)? Ah, yes: pass a callback in params! :)
– user2173353
Jul 28 '14 at 11:...
range over interface{} which stores a slice
...iven the scenario where you have a function which accepts t interface{} . If it is determined that the t is a slice, how do I range over that slice?
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How can I verify if a Windows Service is running
...rvice typically takes some time to start. I'd like to check, from my code, if the service is running. How can I accomplish this?
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Use Font Awesome Icon in Placeholder
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You can't add an icon and text because you can't apply a different font to part of a placeholder, however, if you are satisfied with just an icon then it can work. The FontAwesome icons are just characters with a custom font (you can look at the FontAwesome Cheatsheet for the escape...
Is there any difference between “foo is None” and “foo == None”?
Is there any difference between:
12 Answers
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