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Calculate the center point of multiple latitude/longitude coordinate pairs
...imilar based on what I found at this web site: geomidpoint.com/calculation.html.
– zeke
Jul 13 '11 at 16:37
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Passing Objects By Reference or Value in C#
...tp://dotnetstep.blogspot.com/2008/09/passing-reference-type-byval-or-byref.html
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Python: What OS am I running on?
... exists for Unix systems. The Python 3 docs: docs.python.org/3/library/os.html Availability: recent flavors of Unix.
– Irving Moy
Mar 22 at 21:49
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ALTER TABLE, set null in not null column, PostgreSQL 9.1
...ls in the manual: http://www.postgresql.org/docs/9.1/static/sql-altertable.html
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You can't specify target table for update in FROM clause
...index/primary key [see dev.mysql.com/doc/refman/5.1/en/create-table-select.html ]
– Alex
Feb 11 '13 at 9:25
As @Konera...
HTTP redirect: 301 (permanent) vs. 302 (temporary)
...08/301-permanent-vs-302-temporary-status-code-aspnet-csharp-Implementation.html
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How to detect idle time in JavaScript elegantly?
... alert("You are now logged out.")
//location.href = 'logout.html'
}
function resetTimer() {
clearTimeout(time);
time = setTimeout(logout, 3000)
// 1000 milliseconds = 1 second
}
};
And init the function where you need it (for example: onPageLoad)...
Create an enum with string values
...rror!
More : https://www.typescriptlang.org/docs/handbook/advanced-types.html#string-literal-types
Legacy Support
Enums in TypeScript are number based.
You can use a class with static members though:
class E
{
static hello = "hello";
static world = "world";
}
You could go plain as...
Get record counts for all tables in MySQL database
...ictions of InnoDB. See dev.mysql.com/doc/refman/5.0/en/innodb-restrictions.html, section Restrictions on InnoDB Tables, for more info. You could always use a SELECT COUNT(*) FROM t, which however, is a lot slower
– Marking
Feb 23 '12 at 11:21
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What are best practices for validating email addresses on iOS 2.0
... to parse/clean/validate an email address is wrong.
http://tools.ietf.org/html/rfc2822
Section 3.4.1 is very useful. Notice
dtext = NO-WS-CTL / ; Non white space controls
%d33-90 / ; The rest of the US-ASCII
%d94-126 ...