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Simplest way to wait some asynchronous tasks complete, in Javascript?
...callback) {
conn.collection(name).drop(function(err) {
if (err)
return callback(err);
console.log('dropped');
callback(null, name);
});
}
)});
async.parallel(calls, function(err, result) {
/* this code will run after all ca...
Is an entity body allowed for an HTTP DELETE request?
...hen issuing an HTTP DELETE request, the request URI should completely identify the resource to delete. However, is it allowable to add extra meta-data as part of the entity body of the request?
...
Get domain name from given url
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If you want to parse a URL, use java.net.URI. java.net.URL has a bunch of problems -- its equals method does a DNS lookup which means code using it can be vulnerable to denial of service attacks when used with untrusted inpu...
How can I run a function from a script in command line?
...
If the script only defines the functions and does nothing else, you can first execute the script within the context of the current shell using the source or . command and then simply call the function. See help source for mo...
Opening a folder in explorer and selecting a file
.../ suppose that we have a test.txt at E:\
string filePath = @"E:\test.txt";
if (!File.Exists(filePath))
{
return;
}
// combine the arguments together
// it doesn't matter if there is a space after ','
string argument = "/select, \"" + filePath +"\"";
System.Diagnostics.Process.Start("explorer.e...
Using backticks around field names
...of mine works at a place which has a policy which bans them, I'm wondering if there's anything wrong with using backticks around field names in MySQL.
...
Determine installed PowerShell version
...etermine what version of PowerShell is installed on a computer, and indeed if it is installed at all?
19 Answers
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How to fix “Headers already sent” error in PHP
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No output before sending headers!
Functions that send/modify HTTP headers must be invoked before any output is made.
summary ⇊
Otherwise the call fails:
Warning: Cannot modify header information - headers already sent (output started at script:line)
Some functions modifying...
How to create a sequence of integers in C#?
... Note: This creates a sequence starting at 0 with 10 items (ending at 9). If you want 0 through 10, the second parameter would be 11. And if you need an actual array and not IEnumerable<int>, include a call .ToArray().
– Anthony Pegram
Jan 3 '11 at 22:11...
How to create a tag with Javascript?
...reateElement('style');
head.appendChild(style);
style.type = 'text/css';
if (style.styleSheet){
// This is required for IE8 and below.
style.styleSheet.cssText = css;
} else {
style.appendChild(document.createTextNode(css));
}
...