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How do I use Ruby for shell scripting?
...now, no underscore is not ruby-like
include FileUtils
# Gives you access (without prepending by 'FileUtils.') to
cd(dir, options)
cd(dir, options) {|dir| .... }
pwd()
mkdir(dir, options)
mkdir(list, options)
mkdir_p(dir, options)
mkdir_p(list, options)
rmdir(dir, options)
rmdir(list, options)
ln(old...
Modern way to filter STL container?
...t> foo = {25,15,5,-5,-15};
std::vector<int> bar;
// copy only positive numbers:
std::copy_if (foo.begin(), foo.end(), std::back_inserter(bar), [](int i){return i>=0;} );
std::copy_if evaluates the lambda expression for every element in foo here and if it returns true it copies the val...
Interface Builder: What are the UIView's Layout iOS 6/7 Deltas for?
...
This actually refers to the Delta between layout position from iOS6 to iOS7.
In iOS7, some views can hide the status bar or have it transparent and, in effect, it is overlaid on top of your view. So if you put a UI element at (0.0, 0.0) on iOS6, it will appear below the st...
Storing WPF Image Resources
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If you will use the image in multiple places, then it's worth loading the image data only once into memory and then sharing it between all Image elements.
To do this, create a BitmapSource as a resource somewhere:
<BitmapImage x:Key="MyImageSource" UriSource="../Media/I...
Iterating through a JSON object
I am trying to iterate through a JSON object to import data, i.e. title and link. I can't seem to get to the content that is past the : .
...
Dynamic validation and name in a form with AngularJS
...at you're trying to do is you need to dynamically add elements to a form, with something like an ng-repeat, you need to use nested ng-form to allow validation of those individual items:
<form name="outerForm">
<div ng-repeat="item in items">
<ng-form name="innerForm">
<...
Remove a string from the beginning of a string
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Plain form, without regex:
$prefix = 'bla_';
$str = 'bla_string_bla_bla_bla';
if (substr($str, 0, strlen($prefix)) == $prefix) {
$str = substr($str, strlen($prefix));
}
Takes: 0.0369 ms (0.000,036,954 seconds)
And with:
$prefix...
How to subtract X day from a Date object in Java?
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Java 8 and later
With Java 8's date time API change, Use LocalDate
LocalDate date = LocalDate.now().minusDays(300);
Similarly you can have
LocalDate date = someLocalDateInstance.minusDays(300);
Refer to https://stackoverflow.com/a/238859...
NGINX: upstream timed out (110: Connection timed out) while reading response header from upstream
...a request that map-reduces a chunk of data for about 25K users and returns it from Riak to the app, I get an error in the Nginx log:
...
@Html.HiddenFor does not work on Lists in ASP.NET MVC
...sing a model that contains a List as a property. I'm populating this list with items i grab from SQL Server. I want the List to be hidden in the view and passed to the POST action. Later on i may want to add more items to this List with jQuery which makes an array unsuitable for expansion later on. ...