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CSS force image resize and keep aspect ratio
I am working with images, and I ran across a problem with aspect ratios.
23 Answers
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Memory address of variables in Java
Please take a look at the picture below.
When we create an object in java with the new keyword, we are getting a memory address from the OS.
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Bash mkdir and subfolders [duplicate]
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You can:
mkdir -p folder/subfolder
The -p flag causes any parent directories to be created if necessary.
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vim 命令与快捷键 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...A:行末o:光标后插入新行O:光标上插入新行定位h:leftj:downk:upl:right$:行尾0：行首H:...:set nu 设置行号
插入命令
i：光标后
I：行首
a:光标前
A:行末
o:光标后插入新行
O:光标上插入新行
定位
h:left
j:down
k:up
l:right
$:行尾
0：...
jQuery remove all list items from an unordered list
...st. I did a bit of searching, done it a bunch of times before, but just simply forgot the command.
9 Answers
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const char *, char const *, char * const 异同？const修饰符各位置有何区...
..., char * const 异同？const修饰符各位置有何区别？const char * p = new char('a'); 这个是常字符，即p的内容不能被修改。char const * p 意义同上，没有区别。 这时，*...const char * p = new char('a'); 这个是常字符，即p的内容不能被修改。
char co...
JS文字卷动效果的调用函数：startmarquee - 更多技术 - 清泛网 - 专注C/C++及内核技术
...滚动效果。这里介绍一下实现原理：function startmarquee(lh,speed,delay,index){ *函数startmarquee的参数： jquery.sgallery.js 里面有现成的函数 startmarquee() 实现文字向上滚动效果。
这里介绍一下实现原理：
function startmarquee(lh,speed,delay,inde...
How can I see what has changed in a file before committing to git?
I've noticed that while working on one or two tickets, if I step away, I'm not sure what I worked on, what changed, etcetera.
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Can I do a partial revert in GIT
Is it possible to revert only a single file or certain changes in a file in multi file commit?
4 Answers
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CSS: how to add white space before element's content?
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You can use the unicode of a non breaking space :
p:before { content: "\00a0 "; }
See JSfiddle demo
[style improved by @Jason Sperske]
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