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Counter increment in Bash loop not working
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(( COUNTER++ ))
looks more "modern". You can also use
let COUNTER++
if you think that improves readability. Sometimes, Bash gives too many ways of doing things - Perl philosophy I suppose - when perhaps the Python "there is only one right way to do it" might be more appropriate. That's a deba...
AngularJS For Loop with Numbers & Ranges
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A short way of doing this would be to use Underscore.js's _.range() method. :)
http://underscorejs.org/#range
// declare in your controller or wrap _.range in a function that returns a dynamic range.
var range = _.range(1, 11);
// val will be each number in the array not the inde...
Difference between Java Enumeration and Iterator
What is the exact difference between these two interfaces? Does Enumeration have benefits over using Iterator ? If anyone could elaborate, a reference article would be appreciated.
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How to Test a Concern in Rails
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Works great now. Thanks for pointing me in the right direction and helping me refactor @Russell
– Kyle Decot
May 14 '13 at 13:14
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Handle ModelState Validation in ASP.NET Web API
... {
var modelState = actionContext.ModelState;
if (!modelState.IsValid)
actionContext.Response = actionContext.Request
.CreateErrorResponse(HttpStatusCode.BadRequest, modelState);
}
}
}
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Are there strongly-typed collections in Objective-C?
...rics' to Objective-C. In Objective-C, they will generate compiler warnings if there is a type mismatch.
NSArray<NSString*>* arr = @[@"str"];
NSString* string = [arr objectAtIndex:0];
NSNumber* number = [arr objectAtIndex:0]; // Warning: Incompatible pointer types initializing 'NSNumber *' wi...
A monad is just a monoid in the category of endofunctors, what's the problem?
...nsformation, μ : T × T → T, where × means functor composition (μ is known as join in Haskell)
A natural transformation, η : I → T, where I is the identity endofunctor on X (η is known as return in Haskell)
...satisfying these laws:
μ ∘ Tμ = μ ∘ μT
μ ∘ Tη = μ ∘ ηT = 1 (the...
Check if a value is an object in JavaScript
How do you check if a value is an object in JavaScript?
46 Answers
46
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MySQL OPTIMIZE all tables?
...ocked while OPTIMIZE is being performed, which can take a substantial time if the tables hold lots of data. So, during the time a table is being OPTIMIZE'd, no new records can be inserted or deleted. Generally, OPTIMIZE'ing all tables of a production system cannot be considered as a trivial operatio...
How to display loading message when an iFrame is loading?
I have an iframe that loads a third party website which is extremely slow to load.
9 Answers
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