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How to check if an appSettings key exists?
...efaultValue
}
return defaultValue;
}
Used as follows:
string LogFileName = ReadAppSetting("LogFile","LogFile");
double DefaultWidth = ReadAppSetting("Width",1280.0);
double DefaultHeight = ReadAppSetting("Height",1024.0);
Color DefaultColor = ReadAppSetting("Color",Colors.Black);
...
Internet Explorer 11 detection
...y This is just to show the result(!) of the operation. You can open a HTML file and add script tag and run the command inside that script. Here run this.
– Royi Namir
Oct 13 '15 at 7:53
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select、poll、epoll之间的区别总结[整理] - C/C++ - 清泛网 - 专注C/C++及内核技术
...存的机器上大约是10万左右，具体数目可以cat /proc/sys/fs/file-max察看,一般来说这个数目和系统内存关系很大。
总结：
（1）select，poll实现需要自己不断轮询所有fd集合，直到设备就绪，期间可能要睡眠和唤醒多次交替。而epoll其...
Preventing an image from being draggable or selectable without using JS
...s-user-select: none; /* From IE10 only */
user-select: none; /* Not valid CSS yet, as of July 2012 */
-webkit-user-drag: none; /* Prevents dragging of images/divs etc */
user-drag: none;
}
JS:
var makeUnselectable = function( $target ) {
$target
.addClass( 'unselectable' ...
In VIM, how do I break one really long line into multiple lines?
...ot really related to VIM, but you could use the fmt program as in
$ fmt myfile
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Get month name from number
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Note: you may need to import calendar at the top of your file before you can use it.
– SherylHohman
Jun 30 at 18:41
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How to open a new tab using Selenium WebDriver?
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namespace StackOverflowTests {
class OpenNewTab {
static void Main(string[] args) {
IWebDriver driver = new FirefoxDriver();
driver.Navigate().GoToUrl("http://stackoverflow.com/");
IWebElement body = driver.FindElement(By.TagName("body"));
...
List all environment variables from the command line
...rather than the whole lot, or
SET > output.txt
sends the output to a file output.txt which you can open in Notepad or whatever...
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Better way to check variable for null or empty string?
... PHP is a dynamic language what's the best way of checking to see if a provided field is empty?
10 Answers
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JavaScript: Get image dimensions
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if you have image file from your input form.
you can use like this
let images = new Image();
images.onload = () => {
console.log("Image Size", images.width, images.height)
}
images.onerror = () => result(true);
let fileReader = new Fi...