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Check if one list contains element from the other
...the
specified collection (optional operation). In other words, removes
from this list all of its elements that are not contained in the
specified collection.
true if this list changed as a result of the call
Its like
boolean b = list1.retainAll(list2);
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ReactJS state vs prop
...allbacks down to the children that need to modify your data, and call them from the child component.
Modifying this.props or this.state directly is not a good idea, because React will not be able to pick up on the changes. That's because React does a shallow comparison of your post prop to determin...
How to remove EXIF data without recompressing the JPEG?
...IF information (including thumbnail, metadata, camera info... everything!) from JPEG files, but I don't want to recompress it, as recompressing the JPEG will degrade the quality, as well as usually increasing the file size.
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How to implement an ordered, default dict? [duplicate]
I would like to combine OrderedDict() and defaultdict() from collections in one object, which shall be an ordered, default dict .
Is this possible?
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How to force use of overflow menu on devices with menu button
... fit into the ActionBar go into the overflow menu (the one that is reached from the Action Bar not the menu button) even on devices that do have a Menu button . This seems much more intuitive for users than throwing them into a separate menu list that requires the user to jump from a touch(screen)...
Pass Nothing from Javascript to VBScript in IE9
...ns "Nothing". In your JavaScript use "var jsNothing = GetNothing()". Comes from this article
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How do I measure time elapsed in Java? [duplicate]
...o a different core partway through, you will end up with a start timestamp from core 1 and a end timestamp from core 2 but they might not be the same time (you can even get negative values) - some examples: stackoverflow.com/questions/510462/… is a good e
– jasonk
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Which is better, return value or out parameter?
If we want to get a value from a method, we can use either return value, like this:
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How do I remove blank elements from an array?
I have the following array
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How to prevent ENTER keypress to submit a web form?
How do you prevent an ENTER key press from submitting a form in a web-based application?
29 Answers
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