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How do negative margins in CSS work and why is (margin-top:-5 != margin-bottom:5)?
...e element, so why do you have to set margin-top:-8px; and not margin-top:-50%;?
Well, vertical centering in CSS is harder than it should be. When setting even top or bottom margins in %, the value is calculated as a percentage always relative to the width of the containing block. This is rather a c...
cannot load such file — bundler/setup (LoadError)
I'm setting Rails 4 application with Ruby 2.0, but I'm getting "Web application could not be started" and get this trace:
1...
How do I create a right click context menu in Java Swing?
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edited Mar 19 '19 at 17:06
Ahmed Ashour
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prototype based vs. class based inheritance
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203
There are about a hundred terminology issues here, mostly built around someone (not you) trying...
What is a Y-combinator? [closed]
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206
If you're ready for a long read, Mike Vanier has a great explanation. Long story short, it allo...
mongoose vs mongodb (nodejs modules/extensions), which better? and why?
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answered Feb 10 '12 at 18:33
cjohncjohn
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node.js global variables?
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answered Mar 27 '11 at 20:10
masylummasylum
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Is there are way to make a child DIV's width wider than the parent DIV using CSS?
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Use absolute positioning
.child-div {
position:absolute;
left:0;
right:0;
}
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How to display long messages in logcat
... to display long message on logcat. If the length of message is more than 1000 characters, it gets broken.
10 Answers
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MongoDB与内存 - 大数据 & AI - 清泛网移动版 - 专注C/C++及内核技术
...p命令结果：
shell> top -p $(pidof mongod)
Mem: 32872124k total, 30065320k used, 2806804k free, 245020k buffers
Swap: 2097144k total, 100k used, 2097044k free, 26482048k cached
VIRT RES SHR %MEM
1892g 21g 21g 69.6
这台MongoDB服务器有没有性能问题？大家可...