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Tell Ruby Program to Wait some amount of time
...ax:
sleep(4.minutes)
# or, even longer...
sleep(2.hours); sleep(3.days) # etc., etc.
# or shorter
sleep(0.5) # half a second
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What is Prism for WPF?
...ia Unity or MEF), layout (including using MVVM), composite event handling, etc.
Is Prism literally just (or mainly) a booklet, as given on the MSDN site? Does it include any libraries, if so for what exactly?
It is a book, but also includes the libraries for support (on the GitHub site).
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How to take screenshot of a div with JavaScript?
...his:
var c = document.getElementById('the_canvas_element_id');
var t = c.getContext('2d');
/* then use the canvas 2D drawing functions to add text, etc. for the result */
When the user clicks "Capture", do this:
window.open('', document.getElementById('the_canvas_element_id').toDataURL());
Thi...
Difference between . and : in Lua
...nly once. In this case, there's a clear difference between obj.method(obj, etc) and obj:method(etc).
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Fundamental difference between Hashing and Encryption algorithms
...'t work as well in practice because of re-encoding, changing file headers, etc, but it's an example use-case).
Use a hash function when you're checking validity of input data. That's what they are designed for. If you have 2 pieces of input, and want to check to see if they are the same, run both...
Const in JavaScript: when to use it and is it necessary?
...ehaviour is only applicable to Strings, Basic Types. Using Objects, Arrays etc. it is possible to change the values but it is not possible to re-assign an new "Object", e.g. const a = ["a","b"]; a = []; will throw an error otherwise it is possible
– Fer To
Feb ...
Should programmers use SSIS, and if so, why? [closed]
...ing topics an ETL developer MUST know ? Eg. LINQ, SqlDataReader, DataTable etc. I too feel that SSIS is not good for complex tasks. If you have a easy "copy-paste" project/task, then SSIS might be the best tool.
– Steam
Feb 18 '14 at 19:54
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Is there any way to view the currently mapped keys in Vim?
... all of the keys maps made in the current buffer by all of plugins, vimrc, etc, in the current buffer. Is there anyway to do this?
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Swift native base class or NSObject
...erned about: observers, AOP, test mocking frameworks, analytic frameworks, etc. . and the thing about performance is that 90% of gains come from tuning 10%. . so that's my rationale - opt-in for those 10% cases. I think AOP will be a big deal for iOS enterprise apps, but it could be done using a com...
How can I count text lines inside an DOM element? Can I?
...:
var element = document.getElementById('content');
document.defaultView.getComputedStyle(element, null).getPropertyValue("lineHeight");
You will also need to take padding and inter-line spacing into account.
EDIT
Fully self-contained test, explicitly setting line-height:
function countLin...