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Why is there no tuple comprehension in Python?
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You can use a generator expression:
tuple(i for i in (1, 2, 3))
but parentheses were already taken for … generator expressions.
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Origin null is not allowed by Access-Control-Allow-Origin
I have made a small xslt file to create an html output called weather.xsl with code as follows:
7 Answers
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Bash script absolute path with OS X
... trying to obtain the absolute path to the currently running script on OS X.
15 Answers
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What is the difference between the | and || or operators?
I have always used || (two pipes) in OR expressions, both in C# and PHP. Occasionally I see a single pipe used: | . What is the difference between those two usages? Are there any caveats when using one over the other or are they interchangeable?
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No generic implementation of OrderedDictionary?
...<TKey, TValue>, IOrderedDictionary {
new TValue this[int index] { get; set; }
new TValue this[TKey key] { get; set; }
new int Count { get; }
new ICollection<TKey> Keys { get; }
new ICollection<TValue> Values { get; }
new void Add(TKey...
Is there an MD5 Fixed Point where md5(x) == x?
Is there a fixed point in the MD5 transformation, i.e. does there exist x such that md5(x) == x ?
7 Answers
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Mean per group in a data.frame [duplicate]
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This type of operation is exactly what aggregate was designed for:
d <- read.table(text=
'Name Month Rate1 Rate2
Aira 1 12 23
Aira 2 18 73
Aira 3 19 45
Ben 1 53 19
Be...
Where is the WPF Numeric UpDown control?
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Simply use the IntegerUpDown control in the xtended wpf toolkit
You can use it like this:
Add to your XAML the following namespace:
xmlns:xctk="http://schemas.xceed.com/wpf/xaml/toolkit"
In your XAML where you want the control use:
<xctk:IntegerUpDown Name="myUp...
Change priorityQueue to max priorityqueue
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You can use lambda expression since Java 8.
The following code will print 10, the larger.
// There is overflow problem when using simple lambda as comparator, as pointed out by Фима Гирин.
// PriorityQueue<Integer> pq = new Prio...