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MongoDB Aggregation: How to get total records count?

... How do you apply limit to the results set? Results is now a nested array – valen Jan 7 '18 at 18:53 1 ...
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How to get a ListBox ItemTemplate to stretch horizontally the full width of the ListBox?

... @ Agile Jedi, do you know of a solution when you DO have custom ListBox Items? Running into that issue myself. – eoldre May 9 '11 at 15:35 ...
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Is !important bad for performance?

... From: http://taligarsiel.com/Projects/howbrowserswork1.htm#CSS_parsing Now, you can easily see, in such as case with the Object Model described above, the parser can mark the rules affected by the !important easily, without much of a subsequent cost. Performance degradation is not a good argumen...
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Safely limiting Ansible playbooks to a single machine?

...Note the comma (,) at the end; this signals that it's a list, not a file. Now, this won't protect you if you accidentally pass a real inventory file in, so it may not be a good solution to this specific problem. But it's a handy trick to know! ...
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typeof !== “undefined” vs. != null

...e would use the !== or === operators when comparing a value whose type is known to be a string. – Nicolas Rinaudo Aug 30 '13 at 7:38  |  show ...
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How can I close a buffer without closing the window?

...isplay (:sp) and then select a different buffer to display in each window. Now I want to close one of the buffers, yet I don't want the window to close (After the closing it can display the next buffer on the list or an empty buffer, it doesn't matter). How can I do this? ...
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What does “hashable” mean in Python?

... if it has hash value now what is hash value. can you give some example – user1755071 Jan 26 '13 at 9:56 ...
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How would you implement an LRU cache in Java?

... I like lots of these suggestions, but for now I think I'll stick with LinkedHashMap + Collections.synchronizedMap. If I do revisit this in the future, I'll probably work on extending ConcurrentHashMap in the same way LinkedHashMap extends HashMap. UPDATE: By reques...
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How to create custom easing function with Core Animation?

... we're done [animation setValues:values]; return(animation); } @end Now usage will look something like this: // define a parametric function KeyframeParametricBlock function = ^double(double time) { return(1.0 - pow((1.0 - time), 2.0)); }; if (layer) { [CATransaction begin]; [CATran...
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How to center align the ActionBar title in Android?

...center" android:textColor="#FFFFFF" /> </LinearLayout> Now you should have an Actionbar with just a title. If you want to set a custom background, set it in the Layout above (but then don't forget to set android:layout_height="match_parent"). or with: getSupportActionBar().setB...