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Exec : display stdout “live”
...toString());
});
exec buffers the output and usually returns it when the command has finished executing.
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ping response “Request timed out.” vs “Destination Host unreachable”
...n Request timed out and Destination host unreachable returned from the command?
4 Answers
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Fade Effect on Link Hover?
on many sites, such as http://www.clearleft.com , you'll notice that when the links are hovered over, they will fade into a different color as opposed to immediately switching, the default action.
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Subtract two variables in Bash
...ull or 0.
Keep this in mind when using the expression in a bash script in combination with set -e which will exit immediately if a command exits with a non-zero status.
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Provide an image for WhatsApp link sharing
...to the current webpage address
<meta property="og:url" content="https://www.example.com/webpage/" />
Step 5: og:description
Maximum 65 characters
<meta property="og:description" content="description of your website/webpage">
Step 6: og:image
Image(JPG or PNG) with a size less than 30...
How to detect unused methods and #import in Objective-C
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Xcode allows you to (un)check settings for specific compiler warnings that can warn you of some types of unused code. (Select the project in the source list and File > Get Info, then select the Build tab.) Here are a few (which show up for Clang and GCC 4.2 for me) which ma...
Programmatically create a UIView with color gradient
... edited May 23 '17 at 12:10
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answered Apr 15 '14 at 4:19
Arslan AliArslan Ali...
How to read from standard input in the console?
I would like to read standard input from the command line, but my attempts have ended with the program exiting before I'm prompted for input. I'm looking for the equivalent of Console.ReadLine() in C#.
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How to make an HTML back link?
...>
refer JavaScript
Back Button
EDIT
to display url of refer http://www.javascriptkit.com/javatutors/crossmenu2.shtml
and send the element a itself in onmouseover as follow
function showtext(thetext) {
if (!document.getElementById)
return
textcontainerobj = document.getElemen...
How to properly check if std::function is empty in C++11?
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Check here http://www.cplusplus.com/reference/functional/function/operator_bool/
Example
// function::operator bool example
#include <iostream> // std::cout
#include <functional> // std::function, std::plus
int main () {
s...