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What is a singleton in C#?
What is a Singleton and when should I use it?
16 Answers
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Selecting the last value of a column
...spreadsheet with some values in column G. Some cells are empty in between, and I need to get the last value from that column into another cell.
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Consequences of using graft in Mercurial
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When you update to D and graft F::J, Mercurial runs a number of merges. It will start with this merge:
M = three_way_merge(local=D, other=F, base=E)
If we write +d for the delta between the states C and D, then we start with:
+d +...
How does the MapReduce sort algorithm work?
... power of MapReduce is the Terasort benchmark . I'm having trouble understanding the basics of the sorting algorithm used in the MapReduce environment.
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What is the use of “assert” in Python?
I have been reading some source code and in several places I have seen the usage of assert .
21 Answers
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Rails migrations: self.up and self.down versus change
Looks like the new rails version has "change" versus self.up and self.down methods.
3 Answers
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How to get the url parameters using AngularJS
...o sort this out given the sparse Angular documentation. The RouteProvider and routeParams is the way to go. The route wires up the URL to your Controller/View and the routeParams can be passed into the controller.
Check out the Angular seed project. Within the app.js you'll find an example for ...
horizontal line and right way to code it in html, css
I need to draw a horizontal line after some block, and I have three ways to do it:
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How to pass a class type as a function parameter
I have a generic function that calls a web service and serialize the JSON response back to an object.
6 Answers
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Reading a string with scanf
...("%s", string) is equivalent to scanf("%s", &string[0]). On the other hand, scanf("%s", &string) passes a pointer-to-char[256], but it points to the same place.
Then scanf, when processing the tail of its argument list, will try to pull out a char *. That's the Right Thing when you've passe...