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What is the .idea folder?
... a project in JetBrains WebStorm, a folder called .idea gets created. Is it okay if I delete it? Will it affect my project?
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How to downgrade from Internet Explorer 11 to Internet Explorer 10?
...indows feature off, but I wasn't able to install Internet Explorer 10 . It says that it's already installed which it is not. Is there a file or a registry entry I should delete as well?
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Is there a way to make GHC provide the type class constraints of typed holes?
It would be nice if GHC would also tell me that the typed hole has the Show type class constraint.
3 Answers
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月薪2万招“程序员塑形师”，是炒作还是IT男需求？ - 杂谈 - 清泛网 - 专注...
月薪2万招“程序员塑形师”，是炒作还是IT男需求？近日，笔者在某招聘网站发现一个新鲜职业——程序员塑形师——这又是什么鬼？此前程序员鼓励师的出现已在IT界闹得沸沸扬扬，现在这程序员塑...近日，笔者在某招聘网站...
How to append rows to an R data frame
... those vectors, and then, at the end, create your data.frame.
Continuing with Julian's f3 (a preallocated data.frame) as the fastest option so far, defined as:
# pre-allocate space
f3 <- function(n){
df <- data.frame(x = numeric(n), y = character(n), stringsAsFactors = FALSE)
for(i in 1:...
hexadecimal string to byte array in python
...ex String into a byte array so that I can shift each value out and convert it into its proper data type.
8 Answers
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What does an underscore in front of an import statement mean?
I saw this example from sqlite3 on GitHub :
4 Answers
4
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Why does this code segfault on 64-bit architecture but work fine on 32-bit?
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The cast to int* masks the fact that without the proper #include the return type of malloc is assumed to be int. IA-64 happens to have sizeof(int) < sizeof(int*) which makes this problem obvious.
(Note also that because of the undefined behaviour it could st...
Text blinking jQuery
What is an easy way to make text blinking in jQuery and a way to stop it? Must work for IE, FF and Chrome. Thanks
35 Answer...
Efficiency of purely functional programming
...trict evaluation semantics, not lazy) to one that can mutate data, an algorithm written for the impure Lisp that runs in O(n) can be translated to an algorithm in the pure Lisp that runs in O(n log n) time (based on work by Ben-Amram and Galil [1992] about simulating random access memory using only ...