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指定组件的大小 · App Inventor 2 中文网
...de = new QRCode("qrcode", { text: window.location.href + "?f=share", //URL地址 width: 150, height: 150, colorDark: '#000000', //二维码颜色 colorLight: "#ffffff" //背景颜色}); App Inventor 2 中文网 © 2023 - document.write(new Date().getFullYear()); 跟...
Ways to save Backbone.js model data?
...s do that in the next example.
thirdHelping = Backbone.Model.extend({
url: 'donut'
});
thirdHelping.set({id:15}); // Set the id attribute of model to 15
thirdHelping.fetch(); // Backbone assumes this model exists on server as ID 15
Backbone will GET the thirdHelping at http://localhost:8888...
How do I auto-submit an upload form when a file is selected?
... input element is part of
submit() causes the form to send all data to the URL, as specified in action
Advantages of this solution:
Works without ids. It makes life easier, if you have several forms in one html page.
Native javascript, no jQuery or similar required.
The code is inside the html-t...
WCF chokes on properties with no “set ”. Any workaround?
... It does indeed not make sense to serialize a derived property (e.g., an URL property that is computed from an ID property) to a persistent storage (e.g., a database) - upvote for that - but it does make sense to serialize it to a representation (e.g., JSON or XML) that is returned by an API reque...
从一个开发的角度看负载均衡和LVS - 更多技术 - 清泛网 - 专注C/C++及内核技术
...Proxy等七层软负载面向的是HTTP包，所以七层负载可以做的URL解析等工作，LVS无法完成。其次，某次用户访问是与服务端建立连接后交换数据包实现的，如果在第三层网络层做负载均衡，那么将失去「连接」的语义。软负载面向的...
为AppInventor2开发拓展(Extension) · App Inventor 2 中文网
...or 2 剪贴板管理拓展。Powered by 中文网(www.fun123.cn)",
helpUrl = "https://www.fun123.cn/reference/extensions/", //点“帮助”跳转的页面
category = ComponentCategory.EXTENSION,
nonVisible = true, //非可视拓展
...
How to convert the background to transparent? [closed]
...http://lunapic.com/editor/?action=load
Browse for image to upload OR enter URL of the file (below the image)
http://i.stack.imgur.com/2gQWg.png
Edit menu/Transparent (last one)
Click on the red area
Behold :) below is your image, it's just white triangle with transparency...
[dragging the image arou...
What's the most appropriate HTTP status code for an “item not found” error page
...refully, will notice that it was taken from oficial content. Go access the url and remove this down vote pls
– Ricardo Gellman
Sep 21 at 16:59
...
Passing parameters in rails redirect_to
...
If you are looking for a way to pass additional URL parameters (not controller, action, id, etc), here's a robust method for doing so:
object_path(@object, params: request.query_parameters)
That will pass along utm parameters or any other additional params you don't wan...
How to allow only one radio button to be checked?
...field is an ALL field, the other field is dynamic, based on a value in the URL. They want the user to only be able to select one radio.
– user3120861
Jul 24 at 17:06
...