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Python append() vs. + operator on lists, why do these give different results?
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145
To explain "why":
The + operation adds the array elements to the original array. The array.appe...
How to get process ID of background process?
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camhcamh
34.5k1111 gold badges5454 silver badges6262 bronze badges
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Setting git parent pointer to a different parent
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409
Using git rebase. It's the generic "take commit(s) and plop it/them on a different parent (bas...
get all keys set in memcached
... to get the slab ids:
stats items
STAT items:3:number 1
STAT items:3:age 498
STAT items:22:number 1
STAT items:22:age 498
END
The first number after ‘items’ is the slab id. Request a cache dump for each slab id, with a limit for the max number of keys to dump:
stats cachedump 3 100
ITEM vi...
Linux bpftrace学习笔记（持续更新） - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...US.UTF-8/LC_CTYPE
head /usr/lib/locale/en_US.utf8/LC_CTYPE
head /usr/lib64/gconv/gconv-modules.cache
head /usr/lib/locale/locale-archive
head /usr/share/locale/locale.alias
head /usr/lib/locale/en_US.UTF-8/LC_CTYPE
head /usr/lib/locale/en_US.utf8/LC_CTYPE
head /usr/lib64/gconv/gconv-modules.c...
Linux bpftrace学习笔记（持续更新） - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...US.UTF-8/LC_CTYPE
head /usr/lib/locale/en_US.utf8/LC_CTYPE
head /usr/lib64/gconv/gconv-modules.cache
head /usr/lib/locale/locale-archive
head /usr/share/locale/locale.alias
head /usr/lib/locale/en_US.UTF-8/LC_CTYPE
head /usr/lib/locale/en_US.utf8/LC_CTYPE
head /usr/lib64/gconv/gconv-modules.c...
How to uncheck checkbox using jQuery Uniform library
...ture to refresh a "uniformed" element.
Example: http://jsfiddle.net/r87NH/4/
$("input:checkbox").uniform();
$("body").on("click", "#check1", function () {
var two = $("#check2").attr("checked", this.checked);
$.uniform.update(two);
});
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Is there a way to detect if an image is blurry?
...rovide such a metric. Convolve the image with a Laplacian kernel:
1
1 -4 1
1
And use a robust maximum metric on the output to get a number which you can use for thresholding. Try to avoid smoothing too much the images before computing the Laplacian, because you will only find out that a sm...
TLSF源码及算法介绍 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...h
/*
* Two Levels Segregate Fit memory allocator (TLSF)
* Version 2.4.6
*
* Written by Miguel Masmano Tello <mimastel@doctor.upv.es>
*
* Thanks to Ismael Ripoll for his suggestions and reviews
*
* Copyright (C) 2008, 2007, 2006, 2005, 2004
*
* This code is released using a dua...
How to split a string literal across multiple lines in C / Objective-C?
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574
There are two ways to split strings over multiple lines:
Using \
All lines in C can be split i...