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Advantages of stateless programming?
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Many of the other answers have focused on the performance (parallelism) side of functional programming, which I believe is very important. However, you did specifically ask about productivity, as in, can you program the same thing faster in a functional paradigm than in an ...
Is there a way to chain multiple value converters in XAML?
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Implementation:
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" xmlns:converters="clr-namespace:ATXF.Converters;assembly=ATXF" x:Class="ATXF.TestPage">
<ResourceDictionary>
<converters:ValueConverterGroup x:Ke...
How to create ASP.NET Web API Url?
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It works with the simpler form of Url.Action thus you don't have to reference any Routing names:
Url.Action("ActionName", "ControllerName", new { httproute = "DefaultApi" })
You might want to add an area = "" if the URL is needed within an Area. (A...
static allocation in java - heap, stack and permanent generation
...compiled classes now go there. PermGen no longer exists.
2) All the information related to a class like name of the class, Object arrays associated with the class, internal objects used by JVM (like java/lang/Object) and optimization information goes into the Permanent Generation area.
More o...
Cannot change column used in a foreign key constraint
... SMALLINT to INT) as you'll get a legitimate 150 FK constraint incorrectly formed when mysql tries to replace the old table by the new one. In such case, use the accepted answer.
– Xenos
Mar 27 at 9:42
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How to use double or single brackets, parentheses, curly braces
...y braces in Bash, as well as the difference between their double or single forms. Is there a clear explanation?
7 Answers
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What do the return values of node.js process.memoryUsage() stand for?
...pTotal } = process.memoryUsage();
console.log( 'rss', numeral(rss).format('0.0 ib'), heapTotal, numeral(heapTotal).format('0.0 ib') )
}
}
Running The above will give you something like this:
rss 22.3 MiB 4734976 4.5 MiB
rss 24.2 MiB 6483968 6.2 MiB
rss 27.6 MiB 9580544 9.1 MiB
rss 2...
B-Tree vs Hash Table
... link.
The difference between using a b-tree and a hash table is that the former allows you to use column comparisons in expressions that use the =, >, >=, <, <=, or BETWEEN operators, while the latter is used only for equality comparisons that use the = or <=> operators.
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Why can't variables be declared in a switch statement?
...atement. This means that you are left with a scope where a jump will be performed further into the code skipping the initialization.
The correct way to handle this is to define a scope specific to that case statement and define your variable within it:
switch (val)
{
case VAL:
{
// This wi...
Why do people write the #!/usr/bin/env python shebang on the first line of a Python script?
...nterpreter (and any flags it may need).
If you're talking about other platforms, of course, this rule does not apply (but that "shebang line" does no harm, and will help if you ever copy that script to a platform with a Unix base, such as Linux, Mac, etc).
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