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Fastest way to determine if an integer's square root is an integer
...about 1/8 of the residues mod 255 are squares. However, in my experience, calling the modulo operator (%) costs more than the benefit one gets, so I use bit tricks involving 255 = 2^8-1 to compute the residue. (For better or worse, I am not using the trick of reading individual bytes out of a word...
What is the `sensor` parameter for in the Google Places API?
...p;sensor parameter is no longer required for JavaScript or Web Service API calls. The parameter will now be ignored if passed along with any request.
docs - https://developers.google.com/maps/documentation/javascript/tutorial
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Fastest way to implode an associative array with keys
...tes a URL-encoded query string from the associative (or indexed) array provided.
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How do you use variables in a simple PostgreSQL script?
... WHERE Name = v_List;
-- ...
END $$;
Also you can get the last insert id:
DO $$
DECLARE lastid bigint;
BEGIN
INSERT INTO test (name) VALUES ('Test Name')
RETURNING id INTO lastid;
SELECT * FROM test WHERE id = lastid;
END $$;
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How to exclude property from Json Serialization
...embers that shouldn't be serialized. See the example taken from here:
Consider the following (simplified) case:
public class User {
public int Id { get; set; }
public string Name { get; set; }
[ScriptIgnore]
public bool IsComplete
{
get { return Id > 0 && !str...
Types in MySQL: BigInt(20) vs Int(20)
... in INT(20) and BIGINT(20) means almost nothing. It's a hint for display width. It has nothing to do with storage, nor the range of values that column will accept.
Practically, it affects only the ZEROFILL option:
CREATE TABLE foo ( bar INT(20) ZEROFILL );
INSERT INTO foo (bar) VALUES (1234);
S...
Xcode 4, Core Data Model Version - Set Current Version
...is...
In your CustomCoreDataManager.m:
#import "ObjectiveRecord.h"
and call the init method like this
- (instancetype)init {
self = [super init];
if (self) {
[[CoreDataManager sharedManager] setModelName:@"YourModelName"];
}
return self;
}
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How are booleans formatted in Strings in Python?
... % (True, False)
True, False
This is not specific to boolean values - %r calls the __repr__ method on the argument. %s (for str) should also work.
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What is causing the error `string.split is not a function`?
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Would not it be cleaner to call toString() instead of hacky concatenation?
– kapa
Apr 13 '12 at 18:11
2
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Sublime 3 - Set Key map for function Goto Definition
...ick to open the function/method. Sublime Text 3 has already this function called goto_definition but it is bound to F12 .
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