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How to delete a row by reference in data.table?
...ated to assignment by reference versus copying in data.table . I want to know if one can delete rows by reference, similar to
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Why Maven uses JDK 1.6 but my java -version is 1.7
...n -s /Library/Java/JavaVirtualMachines/jdk1.8.0.jdk/Contents/ CurrentJDK
Now it shall work immediately.
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UnicodeEncodeError: 'charmap' codec can't encode - character maps to , print function [du
...ssue for me. Regarding the above: "sys.stdout.encoding" probably does not know your terminal encoding, but only the system-wide encoding. If this is not equal to the terminal, then only parsing some environment variables may help. But that wont work always, as a terminal must not tell the other side...
Overriding the java equals() method - not working?
...ider:
Object obj = new Book();
obj.equals("hi");
// Oh noes! What happens now? Can't call it with a String that isn't a Book...
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What are the differences between Deferred, Promise and Future in JavaScript?
...nsidered writing a new answer. However, I think the OP actually wanted to know what Promises and Deferreds are for. The answer to his actual question would be, roughly, "deferreds can resolve their-self. AFAIK, the theory behind promises and deferreds comes from [Functional Reactive Programming|hask...
Delete a single record from Entity Framework?
...ng up the objects just to delete them, this way you can delete by ID. You know, that's how the DELETE statement works in SQL normally.
– siride
Jul 11 '16 at 18:18
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Working with select using AngularJS's ng-options
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I'm learning AngularJS and was struggling with selection as well. I know this question is already answered, but I wanted to share some more code nevertheless.
In my test I have two listboxes: car makes and car models. The models list is disabled until some make is selected. If selection in ma...
What does 'synchronized' mean?
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Great example, it is good to know theory, but the code is always more specific and complete.
– Santi Iglesias
Sep 8 '16 at 6:15
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SQL Server dynamic PIVOT query?
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Cool! Do you know of a way to add a prefix to the value column names - so you have a result with columns: date, Amount_ABC, Amount_DEF, Amount_GHI? I am asking, because I would like to join an additional value column to it and then I would...
Form inside a form, is that alright? [duplicate]
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This is good to know. I've implemented it in the past with custom data attributes and javascript when I could have just included a html5 shim library.
– Jon Hulka
Mar 22 '17 at 18:10
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