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How to filter None's out of List[Option]?
If I have a List[Option[A]] in Scala, what is the idiomatic way to filter out the None values?
3 Answers
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Set timeout for ajax (jQuery)
...when timeout is reached
},
success: function(){
//do something
},
timeout: 3000 // sets timeout to 3 seconds
});
You can get see what type of error was thrown by accessing the textStatus parameter of the error: function(jqXHR, textStatus, errorThrown) option. The options ar...
How do you load custom UITableViewCells from Xib files?
...tion is simple: How do you load custom UITableViewCell from Xib files? Doing so allows you to use Interface Builder to design your cells. The answer apparently is not simple due to memory managment issues. This thread mentions the issue and suggests a solution, but is pre NDA-release and lacks c...
What is an Intent in Android?
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An Intent is an "intention" to perform an action; in other words,
a messaging object you can use to request an action from another app component
An Intent is basically a message to say you did or want something to happen. ...
How to raise a ValueError?
I have this code which finds the largest index of a specific character in a string, however I would like it to raise a ValueError when the specified character does not occur in a string.
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Maven: missing net.sf.json-lib
I found net.sf.json-lib in the central repository . Copy-pasted the dependency (with version 2.3), and then when I build I get this error:
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Python list iterator behavior and next(iterator)
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What you see is the interpreter echoing back the return value of next() in addition to i being printed each iteration:
>>> a = iter(list(range(10)))
>>> for i in a:
... print(i)
... next(a)
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How to set cookie in node js using express framework?
In my application, I need to set a cookie using the express framework.I have tried the following code but it's not setting the cookie.
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Git status - is there a way to show changes only in a specific directory?
I would like to see a list of files modified since the last commit, as git status shows, but I care only about files located in a single directory. Is there a way to do this? I tried git status <directory> , but it seems this does something completely different (lists all changed files, as ...
What is the default value for enum variable?
An enum variable, anyone know if it is always defaulting to the first element?
2 Answers
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