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General suggestions for debugging in R
I get an error when using an R function that I wrote:
13 Answers
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Converting String to “Character” array in Java
I want to convert a String to an array of objects of Character class but I am unable to perform the conversion. I know that I can convert a String to an array of primitive datatype type "char" with the toCharArray() method but it doesn't help in converting a String to an array of objects of C...
UILongPressGestureRecognizer gets called twice when pressing down
I am detecting if the user has pressed down for 2 seconds:
7 Answers
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Why is creating a Thread said to be expensive?
The Java tutorials say that creating a Thread is expensive. But why exactly is it expensive? What exactly is happening when a Java Thread is created that makes its creation expensive? I'm taking the statement as true, but I'm just interested in mechanics of Thread creation in JVM.
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List comprehension vs map
Is there a reason to prefer using map() over list comprehension or vice versa? Is either of them generally more efficient or considered generally more pythonic than the other?
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Linux - Install redis-cli only
I have a Linux server with Redis installed and I want to connect to it via command line from my local Linux machine.
12 Ans...
Convert an array of primitive longs into a List of Longs
This may be a bit of an easy, headdesk sort of question, but my first attempt surprisingly completely failed to work. I wanted to take an array of primitive longs and turn it into a list, which I attempted to do like this:
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Redis command to get all available keys?
Is there a Redis command for fetching all keys in the database? I have seen some python-redis libraries fetching them. But was wondering if it is possible from redis-client.
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How can I have grep not print out 'No such file or directory' errors?
I'm grepping through a large pile of code managed by git, and whenever I do a grep, I see piles and piles of messages of the form:
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Chrome Uncaught Syntax Error: Unexpected Token ILLEGAL [duplicate]
Receiving the subject error when Chrome tries to load the script file on the page. It says it's at the last line of the javascript file. I can't seem to find anything wrong with it. No errors in firefox, and the script works as expected. Just using form validation
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