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What is the use for Task.FromResult in C#
...ntation to be async. So it's similar to IEnumerable<T> deriving from IDisposable - it allows the enumerable to have disposable resources, not forces it to. Neither FromResult, async, nor await will spawn threads.
– Stephen Cleary
Jan 29 '15 at 19:13
...
How do I create a parameterized SQL query? Why Should I?
...SQL queries to protect against SQL injection attacks without having to vailidate every piece of user input.
6 Answers
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Parse a .py file, read the AST, modify it, then write back the modified source code
... a method to convert back to source. However, the codegen module here provides a pretty printer for the ast that would enable you do do so.
eg.
import ast
import codegen
expr="""
def foo():
print("hello world")
"""
p=ast.parse(expr)
p.body[0].body = [ ast.parse("return 42").body[0] ] # Replac...
UICollectionView inside a UITableViewCell — dynamic height?
...ne of our application screens requires us to place a UICollectionView inside of a UITableViewCell . This UICollectionView will have a dynamic number of items, resulting in a height which must be calculated dynamically as well. However, I am running into problems trying to calculate the height...
SVG: text inside rect
I want to display some text inside SVG rect . Is it possible?
5 Answers
5
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What's the difference between BaseAdapter and ArrayAdapter?
... some sort or if you don't want the default behavior that ArrayAdapter provides, you will likely want to extend BaseAdapter to get the flexibility you need.
The performance of each really depends on how you implement them or change their behavior. At their core, either one can be just as effective ...
How to use Swift @autoclosure
...
Consider a function that takes one argument, a simple closure that takes no argument:
func f(pred: () -> Bool) {
if pred() {
print("It's true")
}
}
To call this function, we have to pass in a closure
f(pred...
What is the best place for storing uploaded images, SQL database or disk file system? [closed]
...esized. (This is another question, how to resize the images on the server side before storing. Maybe someone can please drop a .NET resource for that in the comment or so).
I wonder now what the best place for storing uploaded images is.
...
Importing CSV with line breaks in Excel 2007
...
Any idea how to get the same settings as with double clicking?
– Michiel Thalen
Apr 8 '15 at 21:08
7
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How does the MapReduce sort algorithm work?
...on,
San Francisco, CA, December, 2004.
That link has a PDF and HTML-Slide reference.
There is also a Wikipedia page with description with implementation references.
Also criticism,
David DeWitt and Michael Stonebraker, pioneering experts in parallel databases and shared nothing architectu...