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Reshape three column data frame to matrix (“long” to “wide” format) [duplicate]
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tidyverse solutions now moved to the top.
– Aaron left Stack Overflow
Oct 11 '19 at 17:34
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View's getWidth() and getHeight() returns 0
...victim)
2. Add a runnable to the layout queue: View.post()
Not very well known and my favourite solution. Basically just use the View's post method with your own runnable. This basically queues your code after the view's measure, layout, etc. as stated by Romain Guy:
The UI event queue will proces...
Editing Javascript using Chrome Developer Tools
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I know this question is stale, but I just had a similar problem and found the solution.
If you have the file prettified, Chrome will not allow edits. I turned it off and was able to edit. Willing to bet this is/was your problem...
Maven check for updated dependencies in repository
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That's good to know. However, is there a way to have this report when we build a project instead of having to type that command explicitely ?
– Frederic
Aug 2 '18 at 22:07
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The 'packages' element is not declared
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Oh ok - now I get it.
You can ignore this one - the XML for this is just not correct - the packages-element is indeed not declared (there is no reference to a schema or whatever).
I think this is a known minor bug that won't do a thi...
Find a string by searching all tables in SQL Server Management Studio 2008
... Just edited the initial cursor to INNER JOIN on the schemas table so now it does have the schema in the table name when it comes to use it.
– rob
Nov 2 '17 at 11:18
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Volatile Vs Atomic [duplicate]
...ore value is undefined at that point as well! To explain this you need to know a bit about Java memory management (which can be complex), in short: Threads may create local copies of variables, and the JVM can reorder code to optimize it, therefore there is no guarantee that the above code is run in...
onKeyPress Vs. onKeyUp and onKeyDown
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This is of critical importance if you are doing something that relies on knowing the new value after the input rather than the current value such as inline validation or auto tabbing.
Scenario:
The user types 12345 into an input element.
The user selects the text 12345.
The user types the letter...
How to override the copy/deepcopy operations for a Python object?
...se where pickling and copying need to be different. In fact, I don't even know why copy tries to use the pickling protocol by default. Copying is for in-memory manipulation, pickling is for cross-epoch persistence; they are completely different things that bear little relation to each other.
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How to reorder data.table columns (without copying)
... @PeterPan See also NEWS about the devel version 1.10.5: "setcolorder() now accepts less than ncol(DT) columns to be moved to the front"
– Henrik
Oct 22 '17 at 12:21
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