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Compare two DataFrames and output their differences side-by-side
...rR then you should even out the rows first, by detecting added rows to the new dataframe, and removed rows from the old dataframe
– Saber
Jul 29 '19 at 4:20
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count (non-blank) lines-of-code in bash
...Michael Cramer
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CALayer with transparent hole in it
I have a simple view (left side of the picture) and i need to create some kind of overlay (right side of the picture) to this view. This overlay should have some opacity, so the view bellow it is still partly visible.
Most importantly this overlay should have a circular hole in the middle of it so i...
Cartesian product of multiple arrays in JavaScript
...g the use of reduce.
Special thanks to Bergi for suggesting the use of the newly added flatMap.
Special thanks to ECMAScript 2019 for adding flat and flatMap to the language!
Example
This is the exact example from your question:
let output = cartesian([1,2],[10,20],[100,200,300]);
Output
This is th...
MongoDB Aggregation: How to get total records count?
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Since v.3.4 (i think) MongoDB has now a new aggregation pipeline operator named 'facet' which in their own words:
Processes multiple aggregation pipelines within a single stage on the same set of input documents. Each sub-pipeline has its own field in the outpu...
Mipmap drawables for icons
... else in future :) Just came across this question myself, while creating a new (new new) project.
TL;DR: drawables may be stripped out as part of dp-specific resource optimisation. Mipmaps will not be stripped.
Different home screen launcher apps on different devices show app launcher icons at ...
git add only modified changes and ignore untracked files
...anged/deleted files in this commit. Keep in mind, however, that untracked (new) files are not included.
-m : Sets the commit's message
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How to set the focus for a particular field in a Bootstrap modal, once it appears
...om/bin/4ldqp7x/4 for demo. (Sorry @keyur, I mistakenly edited and saved as new version of your example)
Call focus() in shown event like what @keyur wrote.
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Add custom icons to font awesome
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What if we want to use the standard prefixes, so the new svg can fit into the website?
– Norbert Kardos
Jul 7 '18 at 9:35
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Benchmarking small code samples in C#, can this implementation be improved?
...ty = ThreadPriority.Highest;
// warm up
func();
var watch = new Stopwatch();
// clean up
GC.Collect();
GC.WaitForPendingFinalizers();
GC.Collect();
watch.Start();
for (int i = 0; i < iterations; i++) {
func();
}
watch.Stop();
Console.W...