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Java 8 Stream and operation on arrays
I have just discovered the new Java 8 stream capabilities. Coming from Python, I was wondering if there was now a neat way to do operations on arrays like summing, multiplying two arrays in a "one line pythonic" way ?
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How do I determine the size of my array in C?
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Wait, so there's no way to access the array directly from a pointer and see its size? New to C here.
– sudo
Dec 1 '13 at 6:37
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How to call a method defined in an AngularJS directive?
...you can pass a control object using bi-directional binding = of a variable from the controller scope. You can also control also several instances of the same directive on a page with the same control object.
angular.module('directiveControlDemo', [])
.controller('MainCtrl', function($scope) ...
Retain precision with double in Java
...cimal class which will handle very large numbers and very small numbers.
From the Java API Reference for the BigDecimal class:
Immutable,
arbitrary-precision signed decimal
numbers. A BigDecimal consists of an
arbitrary precision integer unscaled
value and a 32-bit integer scale. If
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Datatables: Cannot read property 'mData' of undefined
...ently on which can help you figure out what is different about that column from the others. Hope that helps!
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Safely limiting Ansible playbooks to a single machine?
...local"
If {{ target }} isn't defined, the playbook does nothing. A group from the hosts file can also be passed through if need be. Overall, this seems like a much safer way to construct a potentially destructive playbook.
Playbook targeting a single host:
$ ansible-playbook user.yml --extra-var...
How to get exit code when using Python subprocess communicate method?
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@uglycoyote you could also edit it to be something like from subprocess import Popen and then just use Popen instead of subprocess(or sp).Popen which I'd say probably increases readability and shortens lines
– Mitch
Nov 18 '16 at 18:43
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animating addClass/removeClass with jQuery
...ss and toggleClass also accepts a second argument; the time duration to go from one state to the other.
$(this).addClass('abc',1000);
See jsfiddle:- http://jsfiddle.net/6hvZT/1/
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GridView VS GridLayout in Android Apps
...splays items in two-dimensional scrolling grid. The items in the grid come from the ListAdapter associated with this view.
This is what you'd want to use (keep using). Because a GridView gets its data from a ListAdapter, the only data loaded in memory will be the one displayed on screen.
GridViews...
Get the first N elements of an array?
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Use array_slice()
This is an example from the PHP manual: array_slice
$input = array("a", "b", "c", "d", "e");
$output = array_slice($input, 0, 3); // returns "a", "b", and "c"
There is only a small issue
If the array indices are meaningful to you, remembe...