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How to find the sum of an array of numbers
Given an array [1, 2, 3, 4] , how can I find the sum of its elements? (In this case, the sum would be 10 .)
43 Answers
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How do I edit the Visual Studio templates for new C# class/interface?
I find myself removing the following import statements in nearly every C# file I create in Visual Studio:
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Insert into a MySQL table or update if exists
I want to add a row to a database table, but if a row exists with the same unique key I want to update the row.
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When to use a Content Provider
I understand that Content Providers are made to allow publicly sharing data between applications. However, I'm wondering if anyone has thoughts about making a Content Provider to use just within your own app. Would there be any advantages to doing this? Any disadvantages?
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How to delete a stash created with git stash create?
Git stash seems to do a lot of what I want, except that it is a little hard to script, as the if you have no changes, then git stash; git stash pop will do something different than if you do have changes in your repository.
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What's wrong with foreign keys?
I remember hearing Joel Spolsky mention in podcast 014 that he'd barely ever used a foreign key (if I remember correctly). However, to me they seem pretty vital to avoid duplication and subsequent data integrity problems throughout your database.
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Fastest way to check if a string matches a regexp in ruby?
What is the fastest way to check if a string matches a regular expression in Ruby?
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Or versus OrElse
What's the difference between or and OrElse ?
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How to assign name for a screen? [closed]
I'm using the screen multiplexer tool on the command shell and open a lot of screens. I then forget which process ID associates with which task.
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Can constructors be async?
I have a project where I'm trying to populate some data in a constructor:
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