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How to generate unique ID with node.js
...unction generate(count, k) {
var _sym = 'abcdefghijklmnopqrstuvwxyz1234567890',
var str = '';
for(var i = 0; i < count; i++) {
str += _sym[parseInt(Math.random() * (_sym.length))];
}
base.getID(str, function(err, res) {
if(!res.length) {
k(str) ...
How to do a non-greedy match in grep?
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Mark ByersMark Byers
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Preventing an image from being draggable or selectable without using JS
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215
Set the following CSS properties to the image:
user-drag: none;
user-select: none;
-moz-user-s...
译文：理解Java中的弱引用 - 更多技术 - 清泛网 - 专注C/C++及内核技术
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然而事与愿违，我很吃惊的发现，在将近20多个有着平均5年开发经验和高学历背景的应聘者中，居然只有两个人知道弱引用的存在，但是在这两个人之中只有一个人真正了解这方面的知识。在面试过程中，我还尝试提示一些东...
Linux环境离线安装docker&docker-compose - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...tgz
# 给docker执行文件赋予可执行权限
sudo chmod 755 -R docker
# 复制docker到/usr/bin/目录下，使docker命令可以执行
sudo cp docker/* /usr/bin/
# 清理解压后的文件（此步骤可以选择不做）
sudo rm -rf docker docker-26.1.4-x86_64.tgz
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What guidelines for HTML email design are there? [closed]
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edited May 14 '12 at 13:15
answered Sep 24 '08 at 14:39
Da...
Setting CSS pseudo-class rules from JavaScript
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answered Nov 22 '08 at 15:40
bobincebobince
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What's the simplest way to list conflicted files in Git?
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CB BaileyCB Bailey
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140...
apache redirect from non www to www
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512
Using the rewrite engine is a pretty heavyweight way to solve this problem. Here is a simpler ...
Why does JavaScript only work after opening developer tools in IE once?
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answered Oct 12 '11 at 15:51
SpudleySpudley
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