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Difference between this and self in JavaScript
...he value of self is window because JavaScript lets you access any property x of window as simply x, instead of window.x. Therefore, self is really window.self, which is different to this.
window.self === window; // true
If you're using a function that is executed in the global scope and is not in...
STL中map容器使用自定义key类型报错详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...:_Tree<_Traits> &”推导 模板 参数
1> f:\vs2008\vc\include\xtree(1466) : 参见“std::operator <”的声明
1> f:\vs2008\vc\include\functional(142): 编译类 模板 成员函数“bool std::less<_Ty>::operator ()(const _Ty &,const _Ty &) const”时
1> with
...
Finding median of list in Python
...
(Works with python-2.x):
def median(lst):
n = len(lst)
s = sorted(lst)
return (sum(s[n//2-1:n//2+1])/2.0, s[n//2])[n % 2] if n else None
>>> median([-5, -5, -3, -4, 0, -1])
-3.5
numpy.median():
>>> from num...
Select unique or distinct values from a list in UNIX shell script
...wing input:
class
jar
jar
jar
bin
bin
java
uniq will output all lines exactly once:
class
jar
bin
java
uniq -d will output all lines that appear more than once, and it will print them once:
jar
bin
uniq -u will output all lines that appear exactly once, and it will print them once:
cla...
How to increase IDE memory limit in IntelliJ IDEA on Mac?
I'm using IDEA 12 Leda on Mountain Lion. I wanted to increase the maximum memory that IDE can use. I set the VMOptions in Info.plist file to be
-Xmx2048m -ea -XX:+HeapDumpOnOutOfMemoryError -Xverify:none -Xbootclasspath/a:../lib/boot.jar
...
Create a dictionary with list comprehension
I like the Python list comprehension syntax.
14 Answers
14
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How to use 'cp' command to exclude a specific directory?
I want to copy all files in a directory except some files in a specific sub-directory.
I have noticed that cp command didn't have the --exclude option.
So, how can I achieve this?
...
How to merge remote changes at GitHub?
...en commits A and B.
Alternatively, you can rebase your change between X and B on top of A, with "git pull --rebase", and push the result back. The rebase will create a new commit D that builds the change between X and B on top of A.
...
Compiled vs. Interpreted Languages
...ying to get a better understanding of the difference. I've found a lot of explanations online, but they tend towards the abstract differences rather than the practical implications.
...
How to replace spaces in file names using a bash script
...res in file and directory names starting from a given root directory? For example:
18 Answers
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