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LINQ Aggregate algorithm explained
...ified function to transform (currentValue, sequenceValue) into (nextValue)
Set currentValue = nextValue
Return the final currentValue
You may find the Aggregate post in my Edulinq series useful - it includes a more detailed description (including the various overloads) and implementations.
One s...
Remove non-utf8 characters from string
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Before calling mb convert, I had to set the mbstring substitute character to none ini_set('mbstring.substitute_character', 'none'); otherwise I was getting question marks in the result.
– cby016
Nov 7 '19 at 18:30
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How can I find all of the distinct file extensions in a folder hierarchy?
On a Linux machine I would like to traverse a folder hierarchy and get a list of all of the distinct file extensions within it.
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%d,%c,%s,%x等转换符 释义 - C/C++ - 清泛网 - 专注C/C++及内核技术
...和p-(P-)记数法(C99) %c 字符 %d 有符号十进制整数 %f 浮...转换说明符
%a(%A) 浮点数、十六进制数字和p-(P-)记数法(C99)
%c 字符
%d 有符号十进制整数
%f 浮点数(包括float和doul...
Linux Shell中 if else及大于、小于、等于逻辑表达式写法 - C/C++ - 清泛网...
Linux Shell中 if else及大于、小于、等于逻辑表达式写法本文简要介绍Linux Shell if条件测试语句的写法，如比较字符串、判断文件是否存在及是否可读等，通常用 "[] "来表示条件测试。注意：if [ xxx ] 表达式前后都要...
What is tail recursion?
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Consider a simple function that adds the first N natural numbers. (e.g. sum(5) = 1 + 2 + 3 + 4 + 5 = 15).
Here is a simple JavaScript implementation that uses recursion:
function recsum(x) {
if (x === 1) {
return x;
} else {
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How to Free Inode Usage?
I have a disk drive where the inode usage is 100% (using df -i command).
However after deleting files substantially, the usage remains 100%.
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Pretty-Print JSON Data to a File using Python
...ect for class involves parsing Twitter JSON data. I'm getting the data and setting it to the file without much trouble, but it's all in one line. This is fine for the data manipulation I'm trying to do, but the file is ridiculously hard to read and I can't examine it very well, making the code writi...
How do I append one string to another in Python?
...ze the string, the original
string object at *pv is deallocated, *pv is set to NULL, an "out of
memory" exception is set, and -1 is returned. Else (on success) 0 is
returned, and the value in *pv may or may not be the same as on input.
As always, an extra byte is allocated for a trailin...
Convert absolute path into relative path given a current directory using Bash
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Minor improvement: Instead of setting source/target directly to $1 and $2, do: source=$(cd $1; pwd) target=$(cd $2; pwd). This way it handles paths with . and .. correctly.
– Joseph Garvin
Apr 4 '12 at 15:11
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