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Use didSelectRowAtIndexPath or prepareForSegue method for UITableView?
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199
If you use prepareForSegue:sender:then you won't have as much to change if you later decide to...
How to match, but not capture, part of a regex?
I have a list of strings. Some of them are of the form 123-...456 . The variable portion "..." may be:
7 Answers
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What is P99 latency?
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201
It's 99th percentile. It means that 99% of the requests should be faster than given latency. In ...
How to get root access on Android emulator?
I have All Android SDK versions(from 1.5 to 2.3.3), and I tried many methods for getting root in Android emulator. I don't use any Android device and test everything on emulator(AVD).
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How can I quantify difference between two images?
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General idea
Option 1: Load both images as arrays (scipy.misc.imread) and calculate an element-wise (pixel-by-pixel) difference. Calculate the norm of the difference.
Option 2: Load both images. Calculate some feature vector for each of them (l...
Xcode “Build and Archive” from command line
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314
I found how to automate the build and archive process from the comand line, I just wrote a blog...
Don't display pushd/popd stack across several bash scripts (quiet pushd/popd)
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136
You could add
pushd () {
command pushd "$@" > /dev/null
}
popd () {
command popd ...
Creating temporary files in bash
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179
The mktemp(1) man page explains it fairly well:
Traditionally, many shell scripts take the...
Pointers in C: when to use the ampersand and the asterisk?
...rst element
To get the second element:
int a[2]; // array
int i = *(a + 1); // the value of the second element
int i2 = a[1]; // the value of the second element
So the [] indexing operator is a special form of the * operator, and it works like this:
a[i] == *(a + i); // these two statements a...
What is the best way to convert seconds into (Hour:Minutes:Seconds:Milliseconds) time?
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13 Answers
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