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Get the IP address of the machine
...ires that you choose a specific external host. Most of the time, any well-known public IP should do the trick. I like Google's public DNS server address 8.8.8.8 for this purpose, but there may be times you'd want to choose a different external host IP. Here is some code that illustrates the full app...
Show data on mouseover of circle
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I like tipsy. My only issue now is that it points to the upper left corner of the circle, rather than the edge as in that demo. I'm not finding any obvious reason why. jsfiddle.net/scottieb/JwaaV (tipsy at very bottom)
– ScottieB...
Why can't decimal numbers be represented exactly in binary?
... factors other than 2 or 5 will not have a terminating representation.
So now going back to bases 10 and 2, we see that any rational with a terminating 10-representation will be of the form p/q exactly when q has only 2s and 5s in its prime factorisation; and that same number will have a terminatin...
How to get the first non-null value in Java?
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That method is now deprecated, and the recommended alternative is MoreObjects.firstNonNull
– davidwebster48
Feb 17 '15 at 0:58
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Server is already running in Rails
... After doing this I'm still getting a "Port in use" for 3000. Anyone know how I can fix this? Thanks!
– daveomcd
Jan 12 '14 at 1:48
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favicon.png vs favicon.ico - why should I use PNG instead of ICO?
...iple resolutions including full alpha channel. By the way, 1-bit alpha is known as "transparency". The only real limit ICO has had was with icons larger or equal to 256 in length (any direction), though it's been overcome several times.
– Christian
Nov 2 '10 at...
Are NSLayoutConstraints animatable? [duplicate]
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Oh, I see what I was doing wrong now (I was using this pattern before but still with no success)...I was calling setNeedsLayout instead of layoutIfNeeded Surely a DOH moment! Actually just changing a constraint automatically calls setNeedsLayout so I guess ...
Inserting a PDF file in LaTeX
...rying to insert a PDF or doc file as an appendix in my LaTeX file. Do you know how I can do this?
6 Answers
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How can I check if a value is a json object?
...a value which is a json object on success and a string 'false' on failure. Now how can I check whether the returned value is a json object?
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Accurate way to measure execution times of php scripts
I want to know how many milliseconds a PHP for-loop takes to execute.
14 Answers
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