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How to convert DateTime? to DateTime
...ode.
DateTime UpdatedTime = _objHotelPackageOrder.UpdatedDate ?? DateTime.Now;
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How to empty a Heroku database
...e, if you are using SHARED_DATABASE_URL:
$ heroku pg:reset DATABASE_URL
Now to recreate the database with nothing in it:
$ heroku run rake db:migrate
To populate the database with your seed data:
$ heroku run rake db:seed
---OR---
You can combine the last two (migrate & seed) into on...
When do items in HTML5 local storage expire?
...parse(localStorage.getItem("key")),
dateString = object.timestamp,
now = new Date().getTime().toString();
compareTime(dateString, now); //to implement
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Xcode/Simulator: How to run older iOS version?
...
To anyone else who finds this older question, you can now download all old versions.
Xcode -> Preferences -> Components (Click on Simulators tab).
Install all the versions you want/need.
To show all installed simulators:
Target -> In dropdown "deployment target" cho...
Get time in milliseconds using C#
...0 numbers bigger than it was a second ago. I've tried converting DateTime.Now to a TimeSpan and getting the TotalMilliseconds from that... but I've heard it isn't perfectly accurate.
...
How to undo “git commit --amend” done instead of “git commit”
...happens on top of a different commit from where the current branch head is now.
# Move the current head so that it's pointing at the old commit
# Leave the index intact for redoing the commit.
# HEAD@{1} gives you "the commit that HEAD pointed at before
# it was moved to where it currently point...
How do you do relative time in Rails?
...irb? I run: require 'active_support' and then try 'time_ago_in_words(Time.now)' but the function isn't found.
– cboettig
Aug 3 '12 at 0:24
2
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How to set up a PostgreSQL database in Django
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@RedRory Thanks, They're fine now ;)
– Alireza Savand
Dec 4 '13 at 23:38
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Is JavaScript a pass-by-reference or pass-by-value language?
...itive types (number, string, etc.) are passed by value, but objects are unknown, because they can be both passed-by-value (in case we consider that a variable holding an object is in fact a reference to the object) and passed-by-reference (when we consider that the variable to the object holds the o...
How to Calculate Execution Time of a Code Snippet in C++
...t;
static timestamp_t
get_timestamp ()
{
struct timeval now;
gettimeofday (&now, NULL);
return now.tv_usec + (timestamp_t)now.tv_sec * 1000000;
}
...
timestamp_t t0 = get_timestamp();
// Process
timestamp_t t1 = get_timestamp();
double se...