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Calculate the center point of multiple latitude/longitude coordinate pairs
...e of the center point of that set (aka a point that would center a view on all points)?
21 Answers
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Twitter Bootstrap - how to center elements horizontally or vertically
is there any way to center html elements vertically or horizontally inside the main parents?
12 Answers
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What is the difference between null and undefined in JavaScript?
...he typeof operator returns 'object' for a value that is null. This was actually an error in the original JavaScript implementation that was then copied in ECMAScript. Today, it is rationalized that null is considered a placeholder for an object, even though, technically, it is a primitive value."
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How to combine class and ID in CSS selector?
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There are differences between #header .callout and #header.callout in css.
Here is the "plain English" of #header .callout:
Select all elements with the class name callout that are descendants of the element with an ID of header.
And #header.callout means:
Select...
Java - removing first character of a string
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Its important to note that this doesn't actually remove the character from the string -- it gives you a new string that has all the characters of the old string except the first one. There's no way to actually modify a string.
– Chris Dodd
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How to differ sessions in browser-tabs?
...f I store information in the user session, this information is shared from all the tabs from the same browser. How to differ sessions in the browser-tabs?
In this example:
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How to keep one variable constant with other one changing with row in excel
...ing the formula into new cells.
Since you are dragging across rows, you really only need to freeze the row part:
=(B0+4)/A$0
Keyboard Shortcuts
Commenters helpfully pointed out that you can toggle relative addressing for a formula in the currently selected cells with these keyboard shortcuts:...
Is Meyers' implementation of the Singleton pattern thread safe?
...rently while the variable is being initialized, the concurrent execution shall wait for completion of the initialization.
GCC and VS support for the feature (Dynamic Initialization and Destruction with Concurrency, also known as Magic Statics on MSDN) is as follows:
Visual Studio: supported sinc...
How to get first and last day of the week in JavaScript
...tring(); just I have corrected the @RichardN's code, which is having a small mistake
– Azeez
Oct 13 '14 at 14:20
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Open new Terminal Tab from command line (Mac OS X)
...egistry as CLI ttab, which also supports iTerm2:
If you have Node.js installed, simply run:
npm install -g ttab
(depending on how you installed Node.js, you may have to prepend sudo).
Otherwise, follow these instructions.
Once installed, run ttab -h for concise usage information, or man ttab to...