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Best way to find if an item is in a JavaScript array? [duplicate]
...!== (1 / 0) && n !== -(1 / 0))
n = (n > 0 || -1) * Math.floor(Math.abs(n));
}
if (n >= len)
return -1;
var k = n >= 0
? n
: Math.max(len - Math.abs(n), 0);
for (; k < len; k++)
{
if (k in t && t[k] === searchE...
Unique random string generation
...(int i=0; i<size; i++)
{
ch = Convert.ToChar(Convert.ToInt32(Math.Floor(26 * random.NextDouble() + 65))) ;
builder.Append(ch);
}
return builder.ToString();
}
GUIDs are fine if you want something unique (like a unique filename or key in a database), but they are not good for somethi...
FileSystemWatcher vs polling to watch for file changes
... are being fired, eventually the handler will start dropping events on the floor and you will miss things.
– Brent Rockwood
Feb 3 '12 at 12:39
add a comment
...
Get average color of image via Javascript
... data.data[i+1];
rgb.b += data.data[i+2];
}
// ~~ used to floor values
rgb.r = ~~(rgb.r/count);
rgb.g = ~~(rgb.g/count);
rgb.b = ~~(rgb.b/count);
return rgb;
}
For IE, check out excanvas.
...
How can you integrate a custom file browser/uploader with CKEditor?
..., "\\'", $str); // an unescaped apostrophe would break js
}
$numRows = floor( count($images) / $cols );
// if there are any images left over then add another row
if( count($images) % $cols != 0 )
$numRows++;
// produce the correct number of table rows with empty cells
for($i=0; $i&l...
How do I calculate percentiles with python/numpy?
... if not N:
return None
k = (len(N)-1) * percent
f = math.floor(k)
c = math.ceil(k)
if f == c:
return key(N[int(k)])
d0 = key(N[int(f)]) * (c-k)
d1 = key(N[int(c)]) * (k-f)
return d0+d1
# median is 50th percentile.
median = functools.partial(percentile, ...
What are Runtime.getRuntime().totalMemory() and freeMemory()?
...@see <a href="http://www.oracle.com/technetwork/articles/java/vmoptions-jsp-140102.html">
* Java HotSpot VM Options quick reference</a>
*/
public class SystemMemory {
// can be white-box mocked for testing
private final Runtime runtime = Runtime.getRuntime();
/**
...
How to copy Java Collections list
...fied that. Nevermind, I've moved on anyway.
– Jasper Floor
May 12 '09 at 8:08
11
For a list of st...
What's the point of OOP?
...ging Frameworks, various language collection types, the ASP.NET stack, The JSP stack etc... These are all things that heavily rely on OOP in their codebases.
share
answered Au...
How to return only the Date from a SQL Server DateTime datatype
...0)),0))))
|--Table Scan(OBJECT:([TEST].[dbo].[DatesTable]))
Using FLOOR() as @digi suggested has performance closer to DateDiff, but is not recommended as casting the datetime data type to float and back does not always yield the original value.
Remember guys: Don't believe anyone. Look at...