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Fatal error: unexpectedly found nil while unwrapping an Optional values [duplicate]
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Almost certainly, your reuse identifier "title" is incorrect.
We can see from the UITableView.h method signature of dequeueReusableCellWithIdentifier that the return type is an Implicitly Unwrapped Optional:
func dequeueReusableCellWithIdentifier(identifier: String!) -> AnyObject! // Used by t...
How do you allow spaces to be entered using scanf?
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If you just want to get a line from the user, it is easier. It's also safer since you can avoid buffer overflows. The scanf family is really useful for turning a string into different things (like four chars and an int for example with "%c%c%c%c%d") but, e...
Double Iteration in List Comprehension
...wers, let me also point out the excellent itertools.chain():
>>> from itertools import chain
>>> list(chain.from_iterable(a))
>>> list(chain(*a)) # If you're using python < 2.6
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How to add url parameters to Django template url tag?
...Is there anyway to pass a dynamic number of kwargs by passing a dictionary from context? e.g. {% url target_link target_kwargs %} it would be like the equivalent of passing **kwargs to a function. I have a use case where target_link is variable and therefore number of kwargs in url is not know
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Rebase a single Git commit
Is there a way to rebase a single commit from a branch onto another branch?
5 Answers
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How to Animate Addition or Removal of Android ListView Rows
...ty to animate the addition and removal of UITableView rows, here's a clip from a youtube video showing the default animation. Note how the surrounding rows collapse onto the deleted row. This animation helps users keep track of what changed in a list and where in the list they were looking at wh...
PHP file_get_contents() and setting request headers
...user_agent', 'SomeBrowser v42.0.4711'); go to user-agent.me and copy yours from there.. or edit php.ini to change it globally
– jaggedsoft
Oct 28 '16 at 23:29
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Git diff --name-only and copy that list
...ead, that says to put them where the later REPLACE is. (That's a nice tip from this Server Fault answer.)
The -a parameter to rsync means to preserve permissions, ownership, etc. if possible. The -R means to use the full relative path when creating the files in the destination.
Update: if you ha...
Why am I getting a NoClassDefFoundError in Java?
...ssarily true and will be misleading to many people! See the better answer from Jared below.
– Dave L.
Aug 31 '16 at 16:42
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How to get text box value in JavaScript
I am trying to use JavaScript to get the value from an HTML text box but value is not coming after white space
15 Answers
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