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Formula to determine brightness of RGB color
...cle where only about every 400th color was used. Each color is represented by 2x2 pixels, colors are sorted from darkest to lightest (left to right, top to bottom).
1st picture - Luminance (relative)
0.2126 * R + 0.7152 * G + 0.0722 * B
2nd picture - http://www.w3.org/TR/AERT#color-contrast
0....
Visual Studio debugger - Displaying integer values in Hex
... decimal display on a per-variable basis in the Visual Studio watch window by appending a debugger format specifier to the variable name. In the watch window, enter:
myInt,h
myInt,d
The other very useful format specifiers are ac (see footnote) for 'always calculate', and nq for displaying with 'n...
Callback of .animate() gets called twice jquery
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I dealt with it by creating a flag: var ranOne = false; $('body,html').animate({ scrollTop: scrollTo }, scrollTime, 'swing', function () { if (ranOne) { ...action... ranOne = false; } else { ranOne = true; } }); It feels...
Generic method multiple (OR) type constraint
...d it was possible to allow a method to accept parameters of multiple types by making it a generic method. In the example, the following code is used with a type constraint to ensure "U" is an IEnumerable<T> .
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How to find the last day of the month from date?
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I will be 71 and retired by then, so not a problem for me! j/k But seriously folks -- heed this warning!
– Volomike
Nov 2 '12 at 3:44
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How to assign an exec result to a sql variable?
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By using an OUTPUT parameter, you can return back any data type, the RETURN value from a stored procedure can only be an integer.
– KM.
Feb 11 '10 at 18:14
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Convert HH:MM:SS string to seconds only in javascript
...ode. Use parseInt(x, 10) instead. And avoid one-liner. Also prevent errors by undefined input. For example: it's not a string, has no ":" or only "HH:MM". etc.
– Dominik
Sep 26 '17 at 14:09
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What is an example of the Liskov Substitution Principle?
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A great example illustrating LSP (given by Uncle Bob in a podcast I heard recently) was how sometimes something that sounds right in natural language doesn't quite work in code.
In mathematics, a Square is a Rectangle. Indeed it is a specialization of a rectangle....
Response.Redirect with POST instead of Get?
...est) with HTTP Status Code 302, which tells the browser where to go next. By definition, the browser will make that via a GET request, even if the original request was a POST.
Another option is to use HTTP Status Code 307, which specifies that the browser should make the redirect request in the sa...
Are types like uint32, int32, uint64, int64 defined in any stdlib header?
...ode using types like uint32, uint64 and I wonder if they should be defined by the programmer in the application code or if they are defined in a standard lib header.
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