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How can I pad an integer with zeros on the left?
...ring.format(). I'm in the process of doing some performance tuning myself and running the two in Visual VM shows the String.format() method accumulating CPU time at about 3-4 times the rate of DecimalFormat.format().
– Steve Ferguson
May 1 '13 at 17:56
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What's the difference between dist-packages and site-packages?
...s the difference between packages installed in the dist-packages directory and the site-packages directory?
2 Answers
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What is the difference between LINQ ToDictionary and ToLookup
What is the difference between LINQ ToDictionary and ToLookup? They seem to do the same thing.
2 Answers
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Prevent “overscrolling” of web page
...n is problematic for both devices that don't respect the html styling hack and for mobile web browsers which look at the full overflow of body disregarding the height to which html was set.
– runspired
Jul 7 '15 at 19:46
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Why is creating a Thread said to be expensive?
...a fair bit of work involved:
A large block of memory has to be allocated and initialized for the thread stack.
System calls need to be made to create / register the native thread with the host OS.
Descriptors need to be created, initialized and added to JVM-internal data structures.
It is also e...
Why does multiprocessing use only a single core after I import numpy?
...er here.
It turns out that certain Python modules (numpy, scipy, tables, pandas, skimage...) mess with core affinity on import. As far as I can tell, this problem seems to be specifically caused by them linking against multithreaded OpenBLAS libraries.
A workaround is to reset the task affinity us...
Markup XML解析库下载（Markup.h 和 Markup.cpp） - 源码下载 - 清泛网 - 专注C/C++及内核技术
.... All rights reserved
// Go to www.firstobject.com for the latest CMarkup and EDOM documentation
// Use in commercial applications requires written permission
// This software is provided "as is", with no warranty.
#if !defined(_MARKUP_H_INCLUDED_)
#define _MARKUP_H_INCLUDED_
#include <std...
What does [:] mean?
I'm analyzing some Python code and I don't know what
6 Answers
6
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How do API Keys and Secret Keys work? Would it be secure if I have to pass my API and secret keys to
I am just starting to think about how api keys and secret keys work. Just 2 days ago I signed up for Amazon S3 and installed the S3Fox Plugin . They asked me for both my Access Key and Secret Access Key, both of which require me to login to access.
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jQuery AJAX file upload PHP
...e browser) sends the form data to the server, then a script on the server handles the upload. Here's an example using PHP.
Your HTML is fine, but update your JS jQuery script to look like this:
$('#upload').on('click', function() {
var file_data = $('#sortpicture').prop('files')[0];
var...