大约有 44,600 项符合查询结果（耗时：0.0342秒） [XML]
SQlite Getting nearest locations (with latitude and longitude)
...method calculateDerivedPosition(...) calculates those points for you (p1, p2, p3, p4 in picture).
/**
* Calculates the end-point from a given source at a given range (meters)
* and bearing (degrees). This methods uses simple geometry equations to
* calculate the end-point.
*
* @param point
* ...
how to get the one entry from hashmap without iterating
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answered Oct 2 '09 at 13:23
Per ÖstlundPer Östlund
1,15477 silver badges66 bronze badges
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Extract a number from a string (JavaScript)
I have a string in JavaScript like #box2 and I just want the 2 from it.
21 Answers
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How to mark a build unstable in Jenkins when running shell scripts
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edited Oct 29 '13 at 9:22
answered Nov 16 '11 at 8:10
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Facebook database design?
...----------------------------------
1 bob@bob.com bobbie M 1/1/2009 New York City
2 jon@jon.com jonathan M 2/2/2008 Los Angeles
3 joe@joe.com joseph M 1/2/2007 Pittsburgh
Table Friends
---------------
UserID FriendID
----------------
1 2
1 3
2 3
...
Ways to save enums in database
...ame Suit
================== ==========
Shelby Jackson 2
Ian Boyd 1
verses
Name Suit
================== ==========
Shelby Jackson Diamond
Ian Boyd Heart
the latter is much easier. The former required getting at the source code and f...
Viewing all defined variables [duplicate]
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answered Mar 11 '09 at 2:36
RedBlueThingRedBlueThing
38.7k1717 gold badges9393 silver badges119119 bronze badges
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Adding a Method to an Existing Object Instance
...t "fooFighters"
...
>>> A.fooFighters = fooFighters
>>> a2 = A()
>>> a2.fooFighters
<bound method A.fooFighters of <__main__.A instance at 0x00A9BEB8>>
>>> a2.fooFighters()
fooFighters
Previously defined instances are updated as well (as long as they ...
MySQL ON vs USING?
...d to just say film_id since that would make for an ambiguity:
ERROR 1052 (23000): Column 'film_id' in field list is ambiguous
As for select *, the joining column appears in the result set twice with ON while it appears only once with USING:
mysql> create table t(i int);insert t select 1;c...
Why would adding a method add an ambiguous call, if it wouldn't be involved in the ambiguity
...ms string[]) in its normal form
1: C(params string[]) in its expanded form
2: C<string>(string)
3: C(string, object)
Candidate zero is obviously inapplicable because string is not convertible to string[]. That leaves three.
Of the three, we must determine a unique best method. We do so b...