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PermGen elimination in JDK 8
... get a java.lang.OutOfMemoryError: PermGen error.
The JDK 8 HotSpot JVM is now using native memory for the representation of class metadata and is called Metaspace. Read More>>
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Renaming xcode 4 project and the actual folder
I know how to rename the project in Xcode 4, but how do you rename the source folder? The thing is that renaming the project in Xcode, does only rename within Xcode (Though it is progress compared to previous) - but why Xcode is not renaming the folder in the filesystem I don't know.
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How to disable scrolling in UITableView table when the content fits on the screen
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Thank you! This is mostly working for me now. Only problem I'm having now is when cells are partially visible they still count as visible and thus scrolling gets disabled when in that case I want it to be enabled.
– Ginny
Sep ...
Can someone explain the right way to use SBT?
...ting out off the closet on this! I don't understand SBT. There, I said it, now help me please.
4 Answers
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Relative imports in Python 2.7
...running a Python file, and importing that file from somewhere else. Just knowing what directory a file is in does not determine what package Python thinks it is in. That depends, additionally, on how you load the file into Python (by running or by importing).
There are two ways to load a Python f...
Difference between “module.exports” and “exports” in the CommonJs Module System
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At this time module.exports and exports pointing to the same reference.
Now, imagine you re-write
greet.js as
exports = function () {
console.log('Hello World');
};
console.log(exports);
console.log(module.exports);
the output will be
[Function]
{}
the reason is : module.exports is a...
How do I parse JSON with Objective-C?
...f the OS X v10.7 and iOS 5 launches, probably the first thing to recommend now is NSJSONSerialization, Apple's supplied JSON parser. Use third-party options only as a fallback if you find that class unavailable at runtime.
So, for example:
NSData *returnedData = ...JSON data, probably from a web r...
Spinlock versus Semaphore
... few threads are contending for the lock at the same time. Of course every now and then two threads will try to acquire the lock at the same time (if this couldn't happen you wouldn't need a lock!), but this is rather the exception than the rule in a "healthy" system.
In such a case, a spinlock g...
MVC3 DropDownListFor - a simple example?
...use StackOverflow to figure out how to get them to appear on the View, but now I don't know how to capture the values in its corresponding properties on the View Model when it's submitted. In order to get this to work I had to create an inner class that had an ID and a value property, then I had to...
Auto margins don't center image in page
...a flexbox: display: flex; align-items: center; justify-content: center and now your content is horizontally and vertically centered. Or move that to align-self: center; justify-self: center on the content itself. css-tricks.com/snippets/css/a-guide-to-flexbox
– Mike 'Pomax' Kam...