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Javascript reduce() on Object
...u want the result as an Object ({ value: ... }), you'll have to initialize and return the object each time:
Object.keys(o).reduce(function (previous, key) {
previous.value += o[key].value;
return previous;
}, { value: 0 });
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iPhone and OpenCV
...l port for the iPhone (iOS).
You can find all of OpenCV's releases here.
And find install instructions here:
Tutorials & introduction for the new version 3.x
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How many socket connections can a web server handle?
... virtual or dedicated hosting, I read somewhere a server/machine can only handle 64,000 TCP connections at one time, is this true? How many could any type of hosting handle regardless of bandwidth? I'm assuming HTTP works over TCP.
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How to sort an array by a date property
...plest Answer
array.sort(function(a,b){
// Turn your strings into dates, and then subtract them
// to get a value that is either negative, positive, or zero.
return new Date(b.date) - new Date(a.date);
});
More Generic Answer
array.sort(function(o1,o2){
if (sort_o1_before_o2) return -1...
Octave-Gnuplot-AquaTerm error: set terminal aqua enhanced title “Figure 1”…unknown terminal type"
I've installed Octave and gnuplot via Homebrew, and downloaded AquaTerm.dmg.
When I try to plot, I get the following message:
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How to determine CPU and memory consumption from inside a process?
...om the Performance Data Helper library (PDH), which is a bit "unintuitive" and takes a lot of painful trial and error to get to work. (At least it took me quite a while, perhaps I've been only a bit stupid...)
Note: for clarity all error checking has been omitted from the following code. Do check t...
Remove all breakpoints in IntelliJ IDEA
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I'm a little late to the party (and possibly incorrect, hence the comment vs an answer), but I think the keyboard shortcut is now Alt+F9. Ctrl+Shift+F8 doesn't do anything for me.
– Brandon
Jan 2 '17 at 18:34
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Find intersection of two nested lists?
... sublist in c2]
Explanation:
The filter part takes each sublist's item and checks to see if it is in the source list c1.
The list comprehension is executed for each sublist in c2.
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How and when to use ‘async’ and ‘await’
From my understanding one of the main things that async and await do is to make code easy to write and read - but is using them equal to spawning background threads to perform long duration logic?
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What is the python “with” statement designed for?
...r the first time today. I've been using Python lightly for several months and didn't even know of its existence! Given its somewhat obscure status, I thought it would be worth asking:
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