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Maintain aspect ratio of div but fill screen width and height in CSS?

...ite to put together that has a fixed aspect ratio of approximately 16:9 landscape, like a video. 9 Answers ...
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Javascript calculate the day of the year (1 - 366)

... Edit: The code above will fail when now is a date in between march 26th and October 29th andnow's time is before 1AM (eg 00:59:59). This is due to the code not taking daylight savings time into account. You should compensate for this: var now = new Date(); var start = new Date(now.getFullY...
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How can I apply a function to every row/column of a matrix in MATLAB?

... Many built-in operations like sum and prod are already able to operate across rows or columns, so you may be able to refactor the function you are applying to take advantage of this. If that's not a viable option, one way to do it is to collect the rows or c...
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How to map and remove nil values in Ruby

... Ruby 2.7 is introducing filter_map for this exact purpose. It's idiomatic and performant, and I'd expect it to become the norm very soon. For example: numbers = [1, 2, 5, 8, 10, 13] enum.filter_map { |i| i * 2 if i.even? } # => [4, 16, 20] In your case, as the block evaluates to falsey, simp...
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Red black tree over avl tree

AVL and Red black trees are both self-balancing except Red and black color in the nodes. What's the main reason for choosing Red black trees instead of AVL trees? What are the applications of Red black trees? ...
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data.table vs dplyr: can one do something well the other can't or does poorly?

...able , not so much with dplyr . I've read through some dplyr vignettes and examples that have popped up on SO, and so far my conclusions are that: ...
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Search for one value in any column of any table inside a database

...s Kondreddi -- Site: http://vyaskn.tripod.com -- Tested on: SQL Server 7.0 and SQL Server 2000 -- Date modified: 28th July 2002 22:50 GMT CREATE TABLE #Results (ColumnName nvarchar(370), ColumnValue nvarchar(3630)) SET NOCOUNT ON DECLARE @TableName nvarchar(256), @ColumnName nvarchar(128), @Sear...
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Most efficient method to groupby on an array of objects

... Here is one that outputs array and not object: groupByArray(xs, key) { return xs.reduce(function (rv, x) { let v = key instanceof Function ? key(x) : x[key]; let el = rv.find((r) => r && r.key === v); ...
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How to change column datatype in SQL database without losing data

I have SQL Server database and I just realized that I can change the type of one of the columns from int to bool . 11 A...
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How do I create and read a value from cookie?

How can I create and read a value from a cookie in JavaScript? 19 Answers 19 ...