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When to use next() and return next() in Node.js
... it as:
app.get('/users/:id?', function(req, res, next){
var id = req.params.id;
if(!id)
return next();
// do something
});
It saves me an indentation level, and when I read the code again later, I'm sure there is no way next is called twice.
...
JavaScript seconds to time string with format hh:mm:ss
...tion () {
var sec_num = parseInt(this, 10); // don't forget the second param
var hours = Math.floor(sec_num / 3600);
var minutes = Math.floor((sec_num - (hours * 3600)) / 60);
var seconds = sec_num - (hours * 3600) - (minutes * 60);
if (hours < 10) {hours = "0"+hours;}
...
How to execute a JavaScript function when I have its name as a string
...ction.
First, I have simplified the first statement by supplying a second parameter to slice(). The original version was working fine in all browsers except IE.
Second, I have replaced this with context in the return statement; otherwise, this was always pointing to window when the target function...
BAT file: Open new cmd window and execute a command in there
...e quotes in some examples.
Examples:
Run a program and pass a filename parameter:
CMD /c write.exe c:\docs\sample.txt
Run a program and pass a long filename:
CMD /c write.exe "c:\sample documents\sample.txt"
Spaces in program path:
CMD /c ""c:\Program Files\Microsoft Office\Office\Winword.e...
Get name of property as a string
...nce property from a property access lambda.
// </summary>
// <typeparam name="T">Type of the property</typeparam>
// <param name="propertyLambda">lambda expression of the form: '() => Class.Property' or '() => object.Property'</param>
// <returns>The name of...
Convert a JSON String to a HashMap
...
try this code :
Map<String, String> params = new HashMap<String, String>();
try
{
Iterator<?> keys = jsonObject.keys();
while (keys.hasNext())
{
...
What is the difference between sigaction and signal?
... Callback function to handle termination signals, such as Ctrl + C
/// @param[in] signal Signal number of the signal being handled by this callback function
/// @return None
static void termination_handler(const int signal)
{
switch (signal)
{
case SIGINT:
printf("\nSIGI...
How Do I Get the Query Builder to Output Its Raw SQL Query as a String?
...owing event listener:
Event::listen('illuminate.query', function($query, $params, $time, $conn)
{
dd(array($query, $params, $time, $conn));
});
DB::table('users')->get();
This will print out something like:
array(4) {
[0]=>
string(21) "select * from "users""
[1]=>
array(0...
Using DNS to redirect to another URL with a path [closed]
...solution, but it works ;)
But be aware of, the redirect skips all the URL parameters e.g.: ...?param1=value1&param2=value2
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How to recursively download a folder via FTP on Linux [closed]
...
Nice params here especially -nc and --cut-dirs. Thanks for sharing!
– Lance Cleveland
Oct 24 '13 at 22:50
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