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How to check that a string is a palindrome using regular expressions?
...es and edges. Each edge is annotated with a letter from a finite alphabet. One or more nodes are special "accepting" nodes and one node is the "start" node. As each letter is read from a given word we traverse the given edge in the machine. If we end up in an accepting state then we say that the mac...
Why does only the first line of this Windows batch file execute but all three lines execute in a com
I have a batch file that executes three Maven commands, one after the other. Each command can be successfully executed in the script - by itself!. But when I add all three commands to the same file, only the first one executes before the script exits. Any idea why?
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Error to use a section registered as allowDefinition='MachineToApplication' beyond application level
... in my /portal/ directory has this error message, and I know it's a common one. I have googled this error message to no end, and I see a lot of posts telling me to configure the /portal/ folder as an application in IIS (which I have), and more posts telling me I have nested web.configs (but none of...
How to add many functions in ONE ng-click?
...h does what's needed), but what reasons are there not to have two calls in one ng-click?
– Dave Everitt
Oct 28 '13 at 11:23
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Remove a cookie
...s at $_COOKIE["hello"], it will still find it set. I just got bit by this one.
– Magmatic
Jul 15 '13 at 14:41
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How do I check (at runtime) if one class is a subclass of another?
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If there's one thing that's a constant on Stack Overflow, it is that any questions with an answer that implies isinstance or issubclass will also be accompanied with lectures about duck typing!
– B Robster
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linux: kill background task
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Assuming the ???? stands for one or more commands to be executed after the kill, if any of those commands relies on work done by the background process, be mindful of any cleanup or finishing-up tasks which the background process might perform in a signa...
How to insert a new line in Linux shell script? [duplicate]
... but what would be the equivalent for echo "i want to be on one line" echo "i want to be on another" by using one echo command, and just \n, so that when you have long sentences, you can wrap your text in bash(using maybe 3 or 4 bash lines atleast with only one echo command. I came ...
JSF backing bean structure (best practices)
...Bean: Normally session or application scope. This type of bean "supports" one or more views in the "View" concern of the MVC design pattern. The typical use case is supplying an ArrayList to JSF h:selectOneMenu drop-down lists that appear in more than one JSF view. If the data in the dropdown lists...
Why are quaternions used for rotations?
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Gimbal lock is one reason, although as you say it is only a problem with Euler angles and is easily solvable. Euler angles are still used when memory is a concern as you only need to store 3 numbers.
For quaternions versus a 3x3 rotation m...