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使用App Inventor扩展实现多点触控：Scale Detector · App Inventor 2 中文网
...会将球的大小缩小 3，至少缩小到 5。程序还会设置标签文本以显示球的当前大小。
应用程序的另一个关键部分是在应用程序启动时调用 ScaleDetector.AddHandlerToCanvas 方法。 这告诉比例检测器在指示的画布上侦听比例手势。 请注意...
How to check that an object is empty in PHP?
...t by converting it to a pure array:
$obj = simplexml_load_file($url);
// `json_decode(json_encode($obj), TRUE)` can be slow because
// you're converting to and from a JSON string.
// I don't know another simple way to do a deep conversion from object to array
$array = json_decode(json_encode($obj),...
How to redirect 404 errors to a page in ExpressJS?
.../notfound
// $ curl http://localhost:3000/notfound -H "Accept: application/json"
// $ curl http://localhost:3000/notfound -H "Accept: text/plain"
app.use(function(req, res, next){
res.status(404);
// respond with html page
if (req.accepts('html')) {
res.render('404', { url: req.url });
...
NPM clean modules
...
I added this to my package.json: "clean": "rm -rf node_modules", "reinstall": "npm run clean && npm install", "rebuild": "npm run clean && npm install && npm run build",. Seems to work well.
– Lucas...
Put content in HttpResponseMessage object?
...e my post below for creating your own derived types of StringContent (e.g. JSON, XML etc.).
– bytedev
Jan 13 '16 at 16:52
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How to Deserialize XML document
...tatic class ParseHelpers
{
private static JavaScriptSerializer json;
private static JavaScriptSerializer JSON { get { return json ?? (json = new JavaScriptSerializer()); } }
public static Stream ToStream(this string @this)
{
var stream = new MemoryStr...
what's the correct way to send a file from REST web service to client?
...e is made on Java and I'm using Jersey, I'm sending all the data using the JSON format.
4 Answers
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互联网运营人员必备的12款工具 - 资讯 - 清泛网 - 专注C/C++及内核技术
...制作基于H5手机幻灯片页面。它有多种动态模板，能实现文本和图片的滑动、隐现、放大缩小等动态效果。易企秀还与主流社会化媒体打通，方便了内容的分享与传播。
易企秀还有统计功能，你可以随时了解H5页面的传播效果。...
facebook: permanent Page Access Token?
...son it gets stuck on this request. I think it's because the response isn't JSON, but a query string. Since it's a GET request, you can just go to the URL in your browser.
The response should look like this:
{"access_token":"ABC123","token_type":"bearer","expires_in":5183791}
"ABC123" will be ...
How to make a JSONP request from Javascript without JQuery?
Can I make a cross-domain JSONP request in JavaScript without using jQuery or other external library? I would like to use JavaScript itself and then parse the data and make it an object so I could use it. Do I have to use an external library? If not, how can I do it?
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