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Can I set variables to undefined or pass undefined as an argument?
...e been part of the language; null would have worked just fine for (2) and (3), and (4) is a misfeature that only exists because in the beginning JavaScript had no exceptions.
what does if (!testvar) actually do? Does it test for undefined and null or just undefined?
Such a ‘truthiness’ tes...
You have already activated X, but your Gemfile requires Y
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Andrew Marshall
87.3k1818 gold badges202202 silver badges204204 bronze badges
answered Jun 18 '11 at 0:42
mattmatt
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Skip first entry in for loop in python?
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13 Answers
13
Active
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How Do I Take a Screen Shot of a UIView?
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73
I think you may want renderInContext, not drawInContext. drawInContext is more a method you wou...
Is this object-lifetime-extending-closure a C# compiler bug?
...hod () cil managed
{
// Method begins at RVA 0x2074
// Code size 63 (0x3f)
.maxstack 4
.locals init (
[0] class ConsoleApplication1.Program/Foo/'<>c__DisplayClass1' 'CS$<>8__locals2'
)
IL_0000: newobj instance void ConsoleApplication1.Program/Foo/'<...
How do you declare an interface in C++?
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edited May 23 '17 at 12:10
Community♦
111 silver badge
answered Nov 25 '08 at 17:11
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What is this 'Lambda' everyone keeps speaking of?
... perform much more useful tasks. For example filter:
var numbers = [1, 2, 3, 4];
var even = [];
// keep all even numbers from above array
for (var i=0; i<numbers.length; i++) {
if (numbers[i] % 2 === 0) {
even.push(numbers[i]);
}
}
alert(even);
// Using the filter method
ev...
How do I check if the Java JDK is installed on Mac?
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answered Jan 12 '13 at 11:05
user180100user180100
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Is delete this allowed?
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239
The C++ FAQ Lite has a entry specifically for this
https://isocpp.org/wiki/faq/freestore-mgmt...
Change default text in input type=“file”?
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answered Feb 28 '11 at 7:38
Shiv KumarShiv Kumar
9,12622 gold badges3232 silver badges3737 bronze badges
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