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Python: finding an element in a list [duplicate]
... the index of an element in a list in Python?
Note that the list may not be sorted.
10 Answers
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jQuery using append with effects
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Having effects on append won't work because the content the browser displays is updated as soon as the div is appended. So, to combine Mark B's and Steerpike's answers:
Style the div you're appending as hidden before you actually append it. You can do it with ...
How do I free my port 80 on localhost Windows?
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That agony has been solved for me. I found out that what was taking over port 80 is http api service. I wrote in cmd:
net stop http
Asked me "The following services will be stopped, do you want to continue?" Pressed y
It stopped a num...
How to find a hash key containing a matching value
Given I have the below clients hash, is there a quick ruby way (without having to write a multi-line script) to obtain the key given I want to match the client_id? E.g. How to get the key for client_id == "2180" ?
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What is a “feature flag”?
High Scalability mentions feature flags here:
12 Answers
12
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How to replace all dots in a string using JavaScript
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You need to escape the . because it has the meaning of "an arbitrary character" in a regular expression.
mystring = mystring.replace(/\./g,' ')
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What is the curiously recurring template pattern (CRTP)?
Without referring to a book, can anyone please provide a good explanation for CRTP with a code example?
5 Answers
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What does the question mark and the colon (?: ternary operator) mean in objective-c?
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This is the C ternary operator (Objective-C is a superset of C):
label.frame = (inPseudoEditMode) ? kLabelIndentedRect : kLabelRect;
is semantically equivalent to
if(inPseudoEditMode) {
label.frame = kLabelIndentedRect;
} else {
label.frame = kLabelRec...
Check if two lists are equal [duplicate]
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Use SequenceEqual to check for sequence equality because Equals method checks for reference equality.
var a = ints1.SequenceEqual(ints2);
Or if you don't care about elements order use Enumerable.All method:
var a = ints1.All(ints2.Contains);
The second version also re...
How to make inline functions in C#
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Yes, C# supports that. There are several syntaxes available.
Anonymous methods were added in C# 2.0:
Func<int, int, int> add = delegate(int x, int y)
{
return x + y;
};
Action<int> print = delegate(int x)
{
Console.WriteLine(x);
}
Action<int> helloWorl...