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Object reference not set to an instance of an object.Why doesn't .NET show which object is `null`?
...s but rather IL:
IL_0001: ldnull
IL_0002: stloc.0 // s
IL_0003: ldloc.0 // s
IL_0004: callvirt System.String.get_Length
IL_0009: call System.Console.WriteLine
It is the callvirt opcode that throws the NullReferenceException and it does that when the first argument on...
How to unescape HTML character entities in Java?
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edited Aug 30 '19 at 9:48
Vivien
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answered Jun 15 '09 at 2:43
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The SQL OVER() clause - when and why is it useful?
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edited Jun 4 '13 at 6:07
answered Jun 2 '11 at 19:54
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What is the difference between inversedBy and mappedBy?
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edited Apr 16 '18 at 18:38
jake stayman
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answered Sep 19 '12 ...
What is the difference between IQueryable and IEnumerable?
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13 Answers
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“Could not run curl-config: [Errno 2] No such file or directory” when installing pycurl
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answered Jun 5 '14 at 3:14
Michael RiceMichael Rice
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Random color generator
... place of "#0000FF":
function getRandomColor() {
var letters = '0123456789ABCDEF';
var color = '#';
for (var i = 0; i < 6; i++) {
color += letters[Math.floor(Math.random() * 16)];
}
return color;
}
function setRandomColor() {
$("#colorpad").css("background-colo...
Capitalize the first letter of both words in a two word string
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173
The base R function to perform capitalization is toupper(x). From the help file for ?toupper th...
How can I create an array with key value pairs?
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GumboGumbo
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What integer hash function are good that accepts an integer hash key?
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Knuth's multiplicative method:
hash(i)=i*2654435761 mod 2^32
In general, you should pick a multiplier that is in the order of your hash size (2^32 in the example) and has no common factors with it. This way the hash function covers all your hash space uniformly.
Edit:...