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How do I know that the UICollectionView has been loaded completely?
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62
// In viewDidLoad
[self.collectionView addObserver:self forKeyPath:@"contentSize" options:NSKeyV...
How to read multiple text files into a single RDD?
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edited Aug 21 '19 at 23:06
ChrisWue
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Why can I change value of a constant in javascript
...nst x = {};
x.foo = 'bar';
console.log(x); // {foo : 'bar'}
x.foo = 'bar2';
console.log(x); // {foo : 'bar2'}
and this:
const y = [];
y.push('foo');
console.log(y); // ['foo']
y.unshift("foo2");
console.log(y); // ['foo2', 'foo']
y.pop();
console.log(y); // ['foo2']
but neither of...
How to automatically generate N “distinct” colors?
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82
You can use the HSL color model to create your colors.
If all you want is differing hues (likel...
Is there a good reason I see VARCHAR(255) used so often (as opposed to another length)?
...tiple courses, books, and jobs, I have seen text fields defined as VARCHAR(255) as kind of the default for "shortish" text. Is there any good reason that a length of 255 is chosen so often, other than being a nice round number ? Is it a holdout from some time in the past when there was a good rea...
Why is reading lines from stdin much slower in C++ than Python?
...ed together. For example:
int myvalue1;
cin >> myvalue1;
int myvalue2;
scanf("%d",&myvalue2);
If more input was read by cin than it actually needed, then the second integer value wouldn't be available for the scanf function, which has its own independent buffer. This would lead to unexp...
How to split the name string in mysql?
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I've seperated this answer into two(2) methods. The first method will separate your fullname field into first, middle, and last names. The middle name will show as NULL if there is no middle name.
SELECT
SUBSTRING_INDEX(SUBSTRING_INDEX(fullname, ' ', 1), ...
how to create a Java Date object of midnight today and midnight tomorrow?
...pare against dates from today at 00:00am (midnight early this morning) to 12:00pm (midnight tonight).
19 Answers
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Read values into a shell variable from a pipe
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edited Apr 28 '14 at 9:19
fedorqui 'SO stop harming'
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