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How to add 10 days to current time in Rails
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Use
Time.now + 10.days
or even
10.days.from_now
Both definitely work. Are you sure you're in Rails and not just Ruby?
If you definitely are in Rails, where are you trying to run this from? Note that Active Support has to be loaded.
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Passing a 2D array to a C++ function
...to pass a 2D array to a function:
The parameter is a 2D array
int array[10][10];
void passFunc(int a[][10])
{
// ...
}
passFunc(array);
The parameter is an array containing pointers
int *array[10];
for(int i = 0; i < 10; i++)
array[i] = new int[10];
void passFunc(int *a[10]) //Array ...
How can I initialize a C# List in the same line I declare it. (IEnumerable string Collection Example
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answered Dec 14 '10 at 10:33
Matthew AbbottMatthew Abbott
55.8k99 gold badges9999 silver badges125125 bronze badges
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How to list records with date from the last 10 days?
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SELECT Table.date
FROM Table
WHERE date > current_date - interval '10' day;
I prefer that format as it makes things easier to read (but it is the same as current_date - 10).
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improv...
What should every JavaScript programmer know? [closed]
...ockford's work on this front is definitely worth reading (although I don't 100% agree with him on which the “Good Parts” are).
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edited May 23 '17 at 12:10
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Converting between datetime, Timestamp and datetime64
...mport numpy
>>> numpy.datetime64('2002-06-28T01:00:00.000000000+0100').astype(datetime)
datetime.datetime(2002, 6, 28, 0, 0)
>>> numpy.__version__
'1.6.2' # current version available via pip install numpy
I can reproduce the long value on numpy-1.8.0 installed as:
pip install g...
What does the “assert” keyword do? [duplicate]
...nableassertions that is.)
Formally, the Java Language Specification: 14.10. The assert Statement says the following:
14.10. The assert Statement
An assertion is an assert statement containing a boolean expression. An assertion is either enabled or disabled. If the assertion is enabled, exec...
How to use R's ellipsis feature when writing your own function?
...are language type. First object is a symbol - list, second is expression 1:10 and so on. That explain why [-1L] is needed: it removes expected symbol from provided arguments in ... (cause it is always a list).
As Dirk states substitute returns "parse tree the unevaluated expression".
When you call m...
Add 10 seconds to a Date
How can I add 10 seconds to a JavaScript date object?
10 Answers
10
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Add st, nd, rd and th (ordinal) suffix to a number
...n '14) accomplishes this:
function ordinal_suffix_of(i) {
var j = i % 10,
k = i % 100;
if (j == 1 && k != 11) {
return i + "st";
}
if (j == 2 && k != 12) {
return i + "nd";
}
if (j == 3 && k != 13) {
return i + "rd";
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