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How do I undo 'git add' before commit?
...ing anything else.
You can use
git reset
without any file name to unstage all due changes. This can come in handy when there are too many files to be listed one by one in a reasonable amount of time.
In old versions of Git, the above commands are equivalent to git reset HEAD <file> and git re...
Can someone give an example of cosine similarity, in a very simple, graphical way?
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I am really glad this was useful to you, Alex. Sorry for the delay in responding. I haven't visited StackOverflow in a while. Actually this is an example of an "inner product space". There's a basic discussion on wikipedia.
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How to edit data in result grid in SQL Server Management Studio
...ning your select query into a view
right click on the view and choose Edit All Rows (you will get a grid of values you can edit - even if the values are from different tables).
You can also add Insert/Update triggers to your view that will allow you to grab the values from your view fields and th...
How does one write code that best utilizes the CPU cache to improve performance?
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The cache is there to reduce the number of times the CPU would stall waiting for a memory request to be fulfilled (avoiding the memory latency), and as a second effect, possibly to reduce the overall amount of data that needs to be transfered (preserving memory bandwidth).
Techniques for ...
Filter dict to contain only certain keys?
...I'm only interested in a select few of them. Is there an easy way to prune all the other ones out?
15 Answers
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The name 'InitializeComponent' does not exist in the current context
... Crazily enough, this worked for me with VS2015. And it fixed all of the errors in all the XAML files. This is a really WTF moment.
– William Denman
Jan 18 '16 at 19:27
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What is a “batch”, and why is GO used?
... SQL server (Sybase or Microsoft's - not sure about what Oracle does), signalling to the client program that the set of commands that were input into it up till the "go" need to be sent to the server to be executed.
Why/when do you need it?
GO in MS SQL server has a "count" parameter - so you can u...
HTML5 Canvas vs. SVG vs. div
...rs.
Canvas has the best performance hands-down, but you have to implement all concepts of managed state (object selection, etc) yourself, or use a library.
The long answer:
HTML5 Canvas is simply a drawing surface for a bit-map. You set up to draw (Say with a color and line thickness), draw tha...
Iterate through a C++ Vector using a 'for' loop
...++ language. I have been starting to use vectors, and have noticed that in all of the code I see to iterate though a vector via indices, the first parameter of the for loop is always something based on the vector. In Java I might do something like this with an ArrayList:
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How to insert a text at the beginning of a file?
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To actually insert a new line: sed -i '1s/^/<added text> \n/' file
– jslatts
Sep 17 '13 at 13:27
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