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What does -> mean in Python function definitions?
...t have any meaning by itself. See the documentation for more information:
https://docs.python.org/3/reference/compound_stmts.html#function-definitions
https://www.python.org/dev/peps/pep-3107/
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How to POST JSON Data With PHP cURL?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
jquery在线预览PDF文件，打开PDF文件 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh-CN" dir="ltr">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
<title>Online View PDF</title>
...
What are the details of “Objective-C Literals” mentioned in the Xcode 4.4 release notes?
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Amazon S3 boto - how to create a folder?
...r"+ extension, new ByteArrayInputStream(new byte[0]), null);
see:
http://www.snowgiraffe.com/tech/147/creating-folders-programmatically-with-amazon-s3s-api-putting-babies-in-buckets/
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Trusting all certificates with okHttp
...
Update OkHttp 3.0, the getAcceptedIssuers() function must return an empty array instead of null.
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研究：[url]https://peterzhong1219.gitee.io/webpages/%E5%A6%82%E4%BD%95...
研究：https://peterzhong1219.gitee.io/ ... App%20Inventor.htmlhttps://qastack.cn/programming/1 ... up-the-gwt-compiler已研究，已解决问题。
Decorators with parameters?
...rguments is a bit different - the decorator with arguments should return a function that will take a function and return another function. So it should really return a normal decorator. A bit confusing, right? What I mean is:
def decorator_factory(argument):
def decorator(function):
def...
Is there a JavaScript function that can pad a string to get to a determined length?
...
http://www.webtoolkit.info/javascript_pad.html
/**
*
* Javascript string pad
* http://www.webtoolkit.info/
*
**/
var STR_PAD_LEFT = 1;
var STR_PAD_RIGHT = 2;
var STR_PAD_BOTH = 3;
function pad(str, len, pad, dir) {
if (typ...
What is lexical scope?
...
First, lexical scope (also called static scope), in C-like syntax:
void fun()
{
int x = 5;
void fun2()
{
printf("%d", x);
}
}
Every inner level can access its outer levels.
There is another way, called dynamic scope used by the first implementation of Lisp, again in a ...