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Best practices for overriding isEqual: and hash
...ery primitive you do
result = prime * result + var
For objects you use 0 for nil and otherwise their hashcode.
result = prime * result + [var hash];
For booleans you use two different values
result = prime * result + ((var)?1231:1237);
Explanation and Attribution
This is not tcurdt's ...
How can I change the language (to english) in Oracle SQL Developer?
...n-english Windows 7 system, and apparently Oracle SQL Developer (version 3.0.04.34, 64-bit) tries to auto-guess my preferred language based on the OS. Is there any way to change the language to english?
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Are negative array indexes allowed in C?
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170
That is correct. From C99 §6.5.2.1/2:
The definition of the subscript
operator [] is th...
What is a rune?
...r <= 122:
return r - 32
case 65 <= r && r <= 90:
return r + 32
default:
return r
}
}
func main() {
fmt.Println(SwapRune('a'))
}
It should be obvious, if you were to look at the Unicode mapping, which is identical to ASCII in that range. Fur...
How to compare variables to undefined, if I don’t know whether they exist? [duplicate]
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190
The best way is to check the type, because undefined/null/false are a tricky thing in JS.
So:
i...
How to check if object property exists with a variable holding the property name?
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answered Jun 14 '12 at 20:01
Rocket HazmatRocket Hazmat
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StringLength vs MaxLength attributes ASP.NET MVC with Entity Framework EF Code First
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205
MaxLength is used for the Entity Framework to decide how large to make a string value field whe...
How do I get the current version of my iOS project in code?
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answered Sep 30 '11 at 9:54
Ashley MillsAshley Mills
38.2k1212 gold badges111111 silver badges136136 bronze badges
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Inverse dictionary lookup in Python
... Don't forget that the value may be found on any number of keys, including 0 or more than 1.
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What is the difference between save and insert in Mongo DB?
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edited Jun 20 at 9:12
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answered Apr 25 '13 at 8:26
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