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Why start a shell command with a backslash?
...uppressed when any character of the command word is quoted. A backslash is one way to do that, but there are also other well known ways to quote: single and double quotes. All of the following will suppress alias substitution:
\curl
cur\l
\c\u\r\l
"c"url
"curl"
"c""u""r""l"
'curl'
'cu'"rl"
...
Do you debug C++ code in Vim? How? [closed]
...s a patch against Vim and requires Vim to be recompiled. clewn is a standalone program that communicates with Vim through the Netbeans socket interface. This requires Vim to be built with the +netbeans option (this is the case in recent Linux distributions so it shouldn't be a problem).
To quote fr...
Does Parallel.ForEach limit the number of active threads?
...h(FilePathArray, path =>... to read about 24,000 files tonight creating one new file for each file I read in. Very simple code. It appears that even 6 threads was enough to overwhelm the 7200 RPM disk I was reading from at 100% utilization. Over the period of a few hours I watched the Parallel...
How to hide image broken Icon using only CSS/HTML?
...he image, or replacing the source with a backup.
<img src="Error.src" onerror="this.style.display='none'"/>
or
<img src="Error.src" onerror="this.src='fallback-img.jpg'"/>
Update
You can apply this logic to multiple images at once by doing something like this:
document.addEv...
What APIs are used to draw over other apps (like Facebook's Chat Heads)?
...
This one:
Allows an application to open windows using the type
TYPE_SYSTEM_ALERT, shown on top of all other applications.
Very few applications should use this permission; these windows are intended
for system-level int...
What do querySelectorAll and getElementsBy* methods return?
...s since IDs have to be unique and thus the function always returns exactly one element (or null if none was found).
However, getElementsByClassName(), querySelectorAll(), and other getElementsBy* methods return an array-like collection of elements. Iterate over it like you would with a real array:
...
How can I check if a URL exists via PHP?
....)
if( ! isValidUrl($url) ){
unset($urls[$k]);
}
}
echo "yay all done! now show my site";
foreach($urls as $url){
echo "<a href=\"{$url}\">{$url}</a><br/>";
}
The functions below could be helpfull, you probably want to modify them to suit your needs:
function isVali...
How to quit android application programmatically
...some codes for quit an Android application programatically. By calling any one of the following code in onDestroy() will it quit application entirely?
...
Check if a table exists in Rails
...iveRecord::Base.connection.data_source_exists? 'table_name' is the correct one now
– Dorian
Dec 30 '16 at 1:35
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show 1 more comment
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What is the official “preferred” way to install pip and virtualenv systemwide?
...h, looks like the instructions say to just do as you say here, it is sanctioned. Nevermind then.
– Steven Lu
Jul 13 '13 at 4:56
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