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How to hide the keyboard when I press return key in a UITextField?
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12 Answers
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Appending a line to a file only if it does not already exist
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298
Just keep it simple :)
grep + echo should suffice:
grep -qxF 'include "/configs/projectnam...
What’s the best way to reload / refresh an iframe?
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21 Answers
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What are Unwind segues for and how do you use them?
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1269
In a Nutshell
An unwind segue (sometimes called exit segue) can be used to navigate back thro...
Difference between String replace() and replaceAll()
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12 Answers
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What is the difference between window, screen, and document in Javascript?
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263
Window is the main JavaScript object root, aka the global object in a browser, also can be tre...
How to drop unique in MySQL?
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281
Simply you can use the following SQL Script to delete the index in MySQL:
alter table fuinfo...
CSS: background image on background color
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291
You need to use the full property name for each:
background-color: #6DB3F2;
background-image:...
Do any JVM's JIT compilers generate code that uses vectorized floating point instructions?
...000; i++) {
a[i%50] = b[i%50] = dot();
}
long t2 = System.nanoTime();
for (int i = 0; i < 10000000; i++) {
float sum = dotc();
ab.put(i%50, sum);
bb.put(i%50, sum);
}
long t3 = System.nanoTime();
Syste...
How to disable python warnings
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426
There's the -W option.
python -W ignore foo.py
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