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Stop/Close webcam which is opened by navigator.getUserMedia

I opened a webcam by using the following JavaScript code: navigator.getUserMedia 16 Answers ...
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Filter rows which contain a certain string

...provided the original data, I will add a toy example using the mtcars data set. Imagine you are only interested in cars produced by Mazda or Toyota. mtcars$type <- rownames(mtcars) dplyr::filter(mtcars, grepl('Toyota|Mazda', type)) mpg cyl disp hp drat wt qsec vs am gear carb ...
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基于PECL OAuth打造微博应用 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...浪,腾讯,搜狐,网易)的开发者,拿到属于你自己的CONSUMER_KEY和CONSUMER_SECRET(有时也被称作APP_*)。 下面开始!假定我们要开发一个类似Follow5和微博通的应用,简单点说就是把消息同时发送到多个微博平台,出于安全性的考...
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How to style the option of an html “select” element?

...nswer your question here: Except for background-color and color, style settings applied through the style object for the option element are ignored. share | improve this answer | ...
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Is it possible to get the iOS 5.1 SDK for Xcode 4.2 on Snow Leopard?

... I followed both Richard Groves and @dklt's set of instructions. It did not work. But I fired the scripts given in this link and it worked like a charm – Vaishnavi Naidu Apr 3 '12 at 13:55 ...
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Prevent browser from loading a drag-and-dropped file

...ffect = "none"; } }); <div id="dropzone">...</div> Setting both effectAllow and dropEffect unconditionally on the window causes my drop zone not to accept any d-n-d any longer, regardless whether the properties are set new or not. ...
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Android:What is difference between setFlags and addFlags for intent

What is difference between setFlags and addFlags for intent. Could any one explain it please. Help Appreciated. 3 Answers ...
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Re-enabling window.alert in Chrome

...ions like alert, prompt and confirm will be completely disabled in default settings in a near future as users are more and more annoyed by ads trying to get all the attention using those functions. – Frederik.L Dec 23 '14 at 10:54 ...
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What is the best way to trigger onchange event in react js

... For React 16 and React >=15.6 Setter .value= is not working as we wanted because React library overrides input value setter but we can call the function directly on the input as context. var nativeInputValueSetter = Object.getOwnPropertyDescriptor(window...
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Selecting empty text input using jQuery

How do I identify empty textboxes using jQuery? I would like to do it using selectors if it is at all possible. Also, I must select on id since in the real code where I want to use this I don't want to select all text inputs. ...