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Float vs Decimal in ActiveRecord
... a Float. It's like a scientific notation for binary (something like +1.43*10^2). Because of that, it is impossible to store fractions and decimals in Float exactly.
That's why there is a Decimal format. If you do this:
irb:001:0> "%.47f" % (1.0/10)
=> "0.10000000000000000555111512312578270...
Is there a standard function to check for null, undefined, or blank variables in JavaScript?
...
103
@TruMan1: in such a case (where your logic dictates the validation) you have to go like if( value || value === false ). Same goes for all ...
How to increment datetime by custom months in python without using library [duplicate]
...gt; somedate = datetime.date.today()
>>> somedate
datetime.date(2010, 11, 9)
>>> add_months(somedate,1)
datetime.date(2010, 12, 9)
>>> add_months(somedate,23)
datetime.date(2012, 10, 9)
>>> otherdate = datetime.date(2010,10,31)
>>> add_months(otherdate,1)...
How can I determine if a JavaScript variable is defined in a page? [duplicate]
...
answered Sep 26 '08 at 10:44
SSharmaSSharma
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...
Using switch statement with a range of value in each case?
...
System.out.println("testing case 1 to 5");
} else if (isBetween(num, 6, 10)) {
System.out.println("testing case 6 to 10");
}
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Python, compute list difference
...
10
This is by far the best solution. Test case on lists with ~6000 strings each showed that this method was almost 100x faster than list compr...
Difference in Months between two dates in JavaScript
...onthDiff(d1, d2);
console.log(
d1.toISOString().substring(0, 10),
"to",
d2.toISOString().substring(0, 10),
":",
diff
);
}
test(
new Date(2008, 10, 4), // November 4th, 2008
new Date(2010, 2, 12) // March 12th, 2010
);
// Result:...
is it possible to select EXISTS directly as a bit?
...9:49
Dai
100k2121 gold badges164164 silver badges259259 bronze badges
answered May 3 '10 at 17:53
Alex K.Alex ...