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Is there a concise way to iterate over a stream with indices in Java 8?
...:
String[] names = {"Sam", "Pamela", "Dave", "Pascal", "Erik"};
IntStream.range(0, names.length)
.filter(i -> names[i].length() <= i)
.mapToObj(i -> names[i])
.collect(Collectors.toList());
The resulting list contains "Erik" only.
One alternative which looks...
Count cells that contain any text
I want to count the cells that contain anything within a range.
Any cell that contain text, or numbers or something else should do a plus one in my result-cell.
...
From ND to 1D arrays
...r(data_array,col):
vector = []
imax = len(data_array)
for i in range(imax):
vector.append(data_array[i][col])
return ( vector )
a = ([1,2,3], [4,5,6])
b = getVector(a,1)
print(b)
Out>[2,5]
So if you need to transpose, you can do something like this:
def transposeArray(...
Difference between DateTime and Time in Ruby
... contain arbitrary dates and can represent nearly any point in time as the range of expression is typically very large.
DateTime.new
# => Mon, 01 Jan -4712 00:00:00 +0000
So it's reassuring that DateTime can handle blog posts from Aristotle.
When choosing one, the differences are somewhat sub...
PHPExcel auto size column width
...ng.
But you also need to identify the columns to set dimensions:
foreach(range('B','G') as $columnID) {
$objPHPExcel->getActiveSheet()->getColumnDimension($columnID)
->setAutoSize(true);
}
$objPHPExcel->getActiveSheet()->getColumnDimension() expects a column ID.
$objP...
In Python, using argparse, allow only positive integers
... upper limit is also known:
parser.add_argument('foo', type=int, choices=xrange(5, 10))
Note: Use range instead of xrange for python 3.x
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foll...
Find objects between two dates MongoDB
...
Querying for a Date Range (Specific Month or Day) in the MongoDB Cookbook has a very good explanation on the matter, but below is something I tried out myself and it seems to work.
items.save({
name: "example",
created_at: ISODate("2010...
Python to print out status bar and percentage
....Bar('=', '[', ']'), ' ', progressbar.Percentage()])
bar.start()
for i in xrange(20):
bar.update(i+1)
sleep(0.1)
bar.finish()
To install it, you can use easy_install progressbar, or pip install progressbar if you prefer pip.
...
What is the difference between Int and Integer?
...
Int is the type of machine integers,
with guaranteed range at least
-229 to 229 - 1, while Integer is arbitrary precision integers, with
range as large as you have memory for.
https://mail.haskell.org/pipermail/haskell-cafe/2005-May/009906.html
...
Why is there no std::stou?
...n stoul and a hypothetical stou would be a check that the result is in the range of unsigned:
unsigned stou(std::string const & str, size_t * idx = 0, int base = 10) {
unsigned long result = std::stoul(str, idx, base);
if (result > std::numeric_limits<unsigned>::max()) {
...