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xtree(1796): warning C4800: “int”: 将值强制为布尔值“true”或“false...
...\Microsoft Visual Studio 11.0\VC\include\xtree(1775): 参见对正在编译的函数 模板 实例化“std::pair<_Ty1,_Ty2> std::_Tree<_Traits>::_Insert_nohint<std::pair<const _Kty,_Ty>&,_Nodety>(bool,_Valty,_Nodety)”的引用
1> with
1> [
1> _Ty1=std::_Tree_iter...
minimum double value in C/C++
... a distinct sign bit, which doesn't belong to the mantissa. This allows to transform the largest positive in the smallest negative just by flipping the sign:
Why aren't these portable ?
The standard doesn't impose any floating point standard.
I agree that my argument is a little bit theoretic, but ...
What is the difference between jQuery: text() and html() ?
...
@ScottSimontis when you set nodeValue property, it transforms ">" into "&lt;", etc.
– Peter Krauss
Aug 31 '15 at 20:09
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Creating a CSS3 box-shadow on all sides but one
... font-size: 1.3em;
color: #FFF;
display: inline-block;
text-transform: uppercase;
position: relative;
box-shadow: 0 0 8px 2px #888; /* the shadow */
}
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html - table row like a link
...
If you're on a browser that supports it you can use CSS to transform the <a> into a table row:
.table-row { display: table-row; }
.table-cell { display: table-cell; }
<div style="display: table;">
<a href="..." class="table-row">
<span class="table-...
Extract first item of each sublist
...as np
lst = [['a','b','c'], [1,2,3], ['x','y','z']]
The first numpy-way, transforming the array:
%timeit list(np.array(lst).T[0])
4.9 µs ± 163 ns per loop (mean ± std. dev. of 7 runs, 100000 loops each)
Fully native using list comprehension (as explained by @alecxe):
%timeit [item[0] for it...
Connecting to TCP Socket from browser using javascript
...s aimed at bring socket to browser-side js. It is a websocket server which transform websocket to socket.
ws2s schematic diagram
code sample:
var socket = new WS2S("wss://ws2s.feling.io/").newSocket()
socket.onReady = () => {
socket.connect("feling.io", 80)
socket.send("GET / HTTP/1.1\r...
Image inside div has extra space below the image
...an vertical align them, give them a height, top/bottom margin and padding, transforms ...).
This also means that:
<img> has no baseline, so when images are used in an inline formatting
context with vertical-align: baseline, the bottom of the image will be
placed on the text baseline.
...
Replace multiple strings with multiple other strings
...a map of the replacements you want to the function and it would return the transformed string.
fiddle with function
To ensure Object.keys works in older browsers, add a polyfill eg from MDN or Es5.
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几个有趣的Javascript Hack - 创意 - 清泛网 - 专注C/C++及内核技术
几个有趣的Javascript Hack在网上看到几个有意思的Javascript代码，和大家分享一下。1. 直接在浏览器中编辑网页内容javascript：document.body.contentEditable='...在网上看到几个有意思的Javascript代码，和大家分享一下。
1. 直接在浏览器中...