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PHP date yesterday [duplicate]
...terval is negative here, we must add() it here)
See also: DateTime::sub() and DateInterval
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How to increment a datetime by one day?
...a calendar day.
Proposed solution
The following solution works for Samoa and keeps the local time constant.
def add_day(today):
"""
Add a day to the current day.
This takes care of historic offset changes and DST.
Parameters
----------
today : timezone-aware datetime obj...
How to change facet labels?
I have used the following ggplot command:
20 Answers
20
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Import CSV file into SQL Server
...oking for help to import a .csv file into SQL Server using BULK INSERT and I have few basic questions.
12 Answers
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Number.sign() in javascript
...its absolute value also gives its sign. Using the short-circuiting logical AND operator allows us to special-case 0 so we don't end up dividing by it:
var sign = number && number / Math.abs(number);
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Postgres: clear entire database before re-creating / re-populating from bash script
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I'd just drop the database and then re-create it. On a UNIX or Linux system, that should do it:
$ dropdb development_db_name
$ createdb developmnent_db_name
That's how I do it, actually.
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HTTP authentication logout via PHP
...omes from the HTTP specification (section 15.6):
Existing HTTP clients and user agents typically retain authentication
information indefinitely. HTTP/1.1. does not provide a method for a
server to direct clients to discard these cached credentials.
On the other hand, section 10.4.2 say...
Returning a value from thread?
...losures. Create a variable that will hold the return value from the thread and then capture it in a lambda expression. Assign the "return" value to this variable from the worker thread and then once that thread ends you can use it from the parent thread.
void Main()
{
object value = null; // Used...
Single vs Double quotes (' vs ")
I've always used single quotes when writing my HTML by hand. I work with a lot of rendered HTML which always uses double quotes. This allows me to determine if the HTML was written by hand or generated. Is this a good idea?
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How to search for “R” materials? [closed]
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http://rseek.org is a great search engine for R manuals, mailing lists, and various websites. It's a Google syndicated search app with specialized UI. I always use it.
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