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Why does !{}[true] evaluate to true in JavaScript?
... believe that's because plain {}[true] is parsed as an empty statement block (not an object literal) followed by an array containing true, which is true.
On the other hand, applying the ! operator makes the parser interpret {} as an object literal, so the following {}[true] becomes a member access ...
what is the difference between 'transform' and 'fit_transform' in sklearn
In the sklearn-python toolbox, there are two functions transform and fit_transform about sklearn.decomposition.RandomizedPCA . The description of two functions are as follows
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How do I read an entire file into a std::string in C++?
... answered Sep 22 '08 at 17:22
Konrad RudolphKonrad Rudolph
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What is the correct way to restore a deleted file from SVN?
I deleted a file from a repo and now want to put it back. The best I can figure out is to:
9 Answers
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Add and remove multiple classes in jQuery
I'm trying to add and remove multiple classes on a text field by clicking different radio buttons. I'm not able to remove the unwanted classes while switching between different radio buttons.
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Calculate the execution time of a method
I have an I/O time-taking method which copies data from a location to another. What's the best and most real way of calculating the execution time? Thread ? Timer ? Stopwatch ? Any other solution? I want the most exact one, and briefest as much as possible.
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How do I delete an item or object from an array using ng-click?
... write a function that enables me to remove an item when the button is clicked but I think I am getting confused with the function - do I use $digest ?
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How to change fontFamily of TextView in Android
So I'd like to change the android:fontFamily in Android but I don't see any pre-defined fonts in Android. How do I select one of the pre-defined ones? I don't really need to define my own TypeFace but all I need is something different from what it shows right now.
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Best design for a changelog / auditing database table? [closed]
...fied, etc). I don't need to store particularly detailed info, so I was thinking something along the lines of:
8 Answers
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How to find all tables that have foreign keys that reference particular table.column and have values
I have a table whose primary key is referenced in several other tables as a foreign key. For example:
7 Answers
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