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Java 反射最佳实践 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...
我们之前写反射都是要这么写：
public static <T> T create(HttpRequest httpRequest) {
Object httpRequestEntity = null;
try {
Class<T> httpRequestEntityCls = (Class<T>) Class.forName(HttpProcessor.PACKAGE_NAME + "." + HttpProcessor.CLASS_NAME);
...
.rar, .zip files MIME Type
...wer(substr($file, - 4));
// RAR magic number: Rar!\x1A\x07\x00
// http://en.wikipedia.org/wiki/RAR
if ($ext == '.rar' and bin2hex($bytes) == '526172211a0700') {
return TRUE;
}
// ZIP magic number: none, though PK\003\004, PK\005\006 (empty archive),
// or PK\007\00...
Convert PDF to clean SVG? [closed]
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Inkscape is used by many people on Wikipedia to convert PDF to SVG.
http://inkscape.org/
They even have a handy guide on how to do so!
http://en.wikipedia.org/wiki/Wikipedia:Graphic_Lab/Resources/PDF_conversion_to_SVG#Conversion_with_Inkscape
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Wait for all promises to resolve
...promises param can be an array of promises.
About bind(), More info here: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/bind
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Django - what is the difference between render(), render_to_response() and direct_to_template()?
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https://docs.djangoproject.com/en/1.8/topics/http/shortcuts/#render
render(request, template[, dictionary][, context_instance][, content_type][, status][, current_app])
render() is a brand spanking new shortcut for render_...
Chrome Dev Tools - Modify javascript and reload
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Great news, the fix is coming in March 2018, see this link: https://developers.google.com/web/updates/2018/01/devtools
"Local Overrides let you make changes in DevTools, and keep those changes across page loads. Previously, any changes that you made in DevTools would be lost when you...
How can javascript upload a blob?
...$('#fileInput').get(0).files.item(0); // instance of File
var xhr = new XMLHttpRequest();
xhr.open('POST', '/upload.php', true);
xhr.onload = function(e) { ... };
xhr.send(file);
Granted, if you are replacing a traditional HTML multipart form with an "AJAX" implementation (that is, your back-end c...
WCF Service , how to increase the timeout?
... there are four timeout values you can tweak:
<bindings>
<basicHttpBinding>
<binding name="IncreasedTimeout"
sendTimeout="00:25:00">
</binding>
</basicHttpBinding>
The most important is the sendTimeout, which says how long the client will wai...
Difference between no-cache and must-revalidate
...roxy must revalidate the cached response regardless of freshness. Source: "HTTP - The Definitive Guide", pages 182-183.
– Matthias Braun
Jul 15 '17 at 10:16
9
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How to format numbers as currency string?
...456.00"
1234567 --> "1,234,567.00"
12345.67 --> "12,345.67"
DEMO: http://jsfiddle.net/hAfMM/9571/
Extended short solution
You can also extend the prototype of Number object to add additional support of any number of decimals [0 .. n] and the size of number groups [0 .. x]:
/**
* Numbe...