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Java 8 Streams - collect vs reduce
...al reduction is meant to combine two immutable values such as int, double, etc. and produce a new one; it’s an immutable reduction. In contrast, the collect method is designed to mutate a container to accumulate the result it’s supposed to produce.
To illustrate the problem, let's suppose you ...
How can I obfuscate (protect) JavaScript? [closed]
...he semi-colons --preserve-semi. Rewriting the private variables to a, b, c etc is usually safe. Another thing I do is make the minifier put a line break after each semi-colon in the code --line-break 0. Then in production if it errors I least have a valid reference line to work from and can find tha...
URL-parameters and logic in Django class-based views (TemplateView)
... Just for referencing: The documentation on self.request, self.args etc can be found in docs.djangoproject.com/en/1.10/topics/class-based-views/…
– LShi
Mar 17 '17 at 15:29
...
What is the difference between children and childNodes in JavaScript?
...nts without looping through all children or avoiding to use getElementById etc.
e.g.
ParentNode.children.namedItem('ChildElement-ID'); // JS
ref.current.children.namedItem('ChildElement-ID'); // React
this.$refs.ref.children.namedItem('ChildElement-ID'); // Vue
I will go with Node.childNodes:
...
Objective-C for Windows
...ctive-C 2.0 language features (blocks, dot syntax, synthesised properties, etc) was added to the Objective-C compiler (see the release notes for full details). Their runtime has also been updated to work almost ident
Get exception description and stack trace which caused an exception, all as a string
... including local variable values, source code context, function parameters etc..
For instance for this code...
import cgitb
cgitb.enable(format='text')
def func2(a, divisor):
return a / divisor
def func1(a, b):
c = b - 5
return func2(a, c)
func1(1, 5)
we get this exception output....
Forward declaring an enum in C++
... forward declare several things in C++ including: struct, class, function, etc...
But can you forward declare an enum in C++?
No you can't.
But why not allow it? If it were allowed you could define your enum type in your header file, and your enum values in your source file. Sounds like it sh...
Serializing a list to JSON
... map javascript-friendly names names to .NET classes, format dates to json etc.
Another option is ServiceStack.Text, part of the ServicStack ... stack, which provides a set of very fast serializers for Json, JSV and CSV.
s...
nil detection in Go
...ck every member for its
respective zero value (e.g. host == "", port == 0, etc.) or have a private field which
is set by an internal initialization method. Example:
type Config struct {
Host string
Port float64
setup bool
}
func NewConfig(host string, port float64) *Config {
retu...
Appropriate datatype for holding percent values?
...r potentially even into the negatives).
Treat value 1 as 100%, 0.5 as 50%, etc. This will allow any math operations to function as expected (i.e. as opposed to using value 100 as 100%).
Amend precision and scale as required (these are the two values in brackets columnName decimal(precision, scale)....