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How does a language expand itself? [closed]
...m userspace (say when writing to the file system or to draw a pixel on the screen) one needs to make a system call. C does not have an instruction to make a system calls but C can call assembler code which can trigger the correct system call, This is what allows one's C code to talk to the kernel.
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Defining custom attrs
...ple, however, if you want are tempted to set the summary on the preference screen, then you need to call notifyChanged() in the preference's onDialogClosed method.
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What is Rack middleware?
...er requests probably comes from the RailsCast episode 151: Rack Middleware screen cast.
Rack middleware evolved out of Rack and there is a great intro at Introduction to Rack middleware.
There's an intro to middleware on Wikipedia here.
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Using @include vs @extend in Sass?
...condary-menu
@media (min-width: 20em)
+active // Active only on wide screens
Result:
#main-menu {
display: block;
background-color: pink;
}
@media (min-width: 20em) {
#secondary-menu {
display: block;
background-color: pink;
}
}
Duplication is inevitable in this case, but...
How to check file MIME type with javascript before upload?
... if an image is renamed, its true MIME type can be determined. See below.
Screenshot
// Return the first few bytes of the file as a hex string
function getBLOBFileHeader(url, blob, callback) {
var fileReader = new FileReader();
fileReader.onloadend = function(e) {
var arr = (ne...
How does Windows 8 Runtime (WinRT / Windows Store apps / Windows 10 Universal App) compare to Silver
...running side by side, but not overlapping? e.g. tiled ... sharing half the screen each for example? The WPF app I'm working on now needs this sort of functionality.
– dodgy_coder
Sep 16 '11 at 0:17
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What arguments are passed into AsyncTask?
...usually used when you want to show any progress or information in the main screen, like a progress bar showing the progress of the operation you are doing in the background.
protected void onPostExecute(Z z){
}
This method is called after the operation in the background is done. As an input ...
Clean up a fork and restart it from the upstream
...gt; Push changes to server
Steps
In the menu toolbar at the top of the screen: "Repository" > "Repository settings"
"Add"
Go back to GitHub and copy the clone URL.
Paste the url into the "URL / Path" field then give it a name that makes sense. I called it "master". Do not check...
传感器组件 · App Inventor 2 中文网
... 假 则是写入模式。
注意： 该组件仅适用于应用程序的 Screen1 主屏幕！！
属性
最新消息
返回最近接收到的标签的内容。
启用读值模式
指定 NFC 硬件是否在读取模式下运行。读取模式 (真) 或 写入模式（假）。
写入...
Correct use for angular-translate in controllers
...e localization data is loaded, the value of the expression changes and the screen is updated.
So, you can do that yourself:
.controller('FirstPageCtrl', ['$scope', '$filter', function ($scope, $filter) {
$scope.$watch(
function() { return $filter('translate')('HELLO_WORLD'); },
...