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UITableView - scroll to the top
...[mainTableView scrollRectToVisible:CGRectMake(0, 0, 1, 1) animated:YES];
Or
[mainTableView setContentOffset:CGPointZero animated:YES];
And in Swift:
mainTableView.setContentOffset(CGPointZero, animated:true)
And in Swift 3 & above:
mainTableView.setContentOffset(.zero, animated: true)
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How to get xdebug var_dump to show full object/array
...ebug-2.1.2-5.3-vc9.dll) on WAMP . When I use var_dump on a large object or variable it does not show the full variable.
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How to check if a view controller is presented modally or pushed on a navigation stack?
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I found this in another SO post. But, does not work if the pushed view controller's parent is a modal; which is the situation I'm having.
– meaning-matters
May 12 '14 at 23:12
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Putting text in top left corner of matplotlib plot
How can I put text in the top left (or top right) corner of a matplotlib figure, e.g. where a top left legend would be, or on top of the plot but in the top left corner? E.g. if it's a plt.scatter(), then something that would be within the square of the scatter, put in the top left most corner.
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What is a stack trace, and how can I use it to debug my application errors?
Sometimes when I run my application it gives me an error that looks like:
7 Answers
7
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Difference between hard wrap and soft wrap?
I am in the process of writing a text editor. After looking at other text editors I have noticed that a number of them refer to a "soft" versus "hard" wrap. What is the difference? I can't seem to find the answer by searching.
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How should equals and hashcode be implemented when using JPA and Hibernate
...? What are the common pitfalls? Is the default implementation good enough for most cases? Is there any sense to use business keys?
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Why is an MD5 hash created by Python different from one created using echo and md5sum in the shell?
...will print the same checksum as your python script:
> echo -n mystringforhash | md5sum
86b6423cb6d211734fc7d81bbc5e11d3 -
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What is an MvcHtmlString and when should I use it?
The documentation for MvcHtmlString is not terribly enlightening:
4 Answers
4
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echo that outputs to stderr
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You could do this, which facilitates reading:
>&2 echo "error"
>&2 copies file descriptor #2 to file descriptor #1. Therefore, after this redirection is performed, both file descriptors will refer to the same file: the one file descriptor #2 was originally referring to. For ...