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What is the C# Using block and why should I use it? [duplicate]
What is the purpose of the Using block in C#? How is it different from a local variable?
9 Answers
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Long press on UITableView
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How do you prevent the table view from navigating into the cell (if you have 'didSelectRowAtIndexPath' implemented?)
– Marchy
Sep 15 '16 at 17:45
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How to display pandas DataFrame of floats using a format string for columns?
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Can I use the DataFrame.style from inside the interpreter?
– Jms
Jan 10 '19 at 23:21
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Contains method for a slice
...thod is trivial to write, and mkb gave you a hint to use the binary search from the sort package. But if you are going to do a lot of such contains checks, you might also consider using a map instead.
It's trivial to check if a specific map key exists by using the value, ok := yourmap[key] idiom. S...
How to get rid of the 'undeclared selector' warning
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Have a look at NSSelectorFromString.
SEL selector = NSSelectorFromString(@"setError:");
if ([self respondsToSelector:selector])
It will allow you to create a selector at runtime, instead of at compile time through the @selector keyword, and the co...
What is Hindley-Milner?
...e. The principal type of the list-length function is "for any a, function from list of a to integer". Here a is a so-called "type parameter," which is explicit in lambda calculus but implicit in most programming languages. The use of type parameters explains why Hindley-Milner is a system that im...
Why use symbols as hash keys in Ruby?
...access a hash, Ruby always applies a hash-function to compute a "hash-key" from whatever key you use. You can imagine something like an MD5-hash. And then Ruby compares those "hashed keys" against each other.
Long answer:
https://web.archive.org/web/20180709094450/http://www.reactive.io/tips/2009...
TDD/BDD screencast/video resources [closed]
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Brett Schuchert from Object Mentor just posted a series of videos on TDD
The videos are meant to be watched in order.
GettingStarted
Adding Basic Operators
Removing Duplication
Extracting to Strategy
Removing Duplication via
Refactoring o...
How do I log errors and warnings into a file?
... -f /tmp/php-error.log
Or update php.ini as described in this blog entry from 2008.
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Min/Max of dates in an array?
How can I find out the min and the max date from an array of dates? Currently, I am creating an array like this:
11 Answers...