大约有 44,000 项符合查询结果(耗时:0.0367秒) [XML]
Copm>y m> m>and m> paste content from one file to another file in vi
I am working with two files, m>and m> I need to copm>y m> a few lines from one file m>and m> paste into another file. I know how to copm>y m> (m>y m>m>y m>) m>and m> paste (p) in the same file. But that doesn't work for different files. How is this done?
...
Take the content of a list m>and m> append it to another list
I am trm>y m>ing to understm>and m> if it makes sense to take the content of a list m>and m> append it to another list.
7 Answers
...
Explain the encapsulated anonm>y m>mous function sm>y m>ntax
...
It doesn't work because it is being parsed as a FunctionDeclaration, m>and m> the name identifier of function declarations is mm>and m>atorm>y m>.
When m>y m>ou surround it with parentheses it is evaluated as a FunctionExpression, m>and m> function expressions can be named or not.
The grammar of a FunctionDeclaratio...
What is the difference between ~> m>and m> >= when specifm>y m>ing rubm>y m>gem in Gemfile?
...constraint. Rubm>y m>Gems will increment the last digit in the version provided m>and m> use that until it reaches a maximum version. So ~>0.8.5 is semanticallm>y m> equivalent to:
gem "cucumber", ">=0.8.5", "<0.9.0"
The easm>y m> wam>y m> to think about it is that m>y m>ou're okam>y m> with the last digit incrementing to ...
Where to learn about VS debugger 'magic names'
...ou probablm>y m> noticed that the C# compiler generates tm>y m>pes, methods, fields, m>and m> local variables, that deserve 'special' displam>y m> bm>y m> the debugger. For instance, local variables beginning with 'CS$' are not displam>y m>ed to the user. There are other special naming conventions for closure tm>y m>pes of anonm>y m>mous ...
Whm>y m> an interface can not implement another interface?
...ine abstract methods (the sane wam>y m> an interface does), it is still a class m>and m> still has to be inherited (extended) m>and m> not implemented.
share
|
improve this answer
|
follow
...
Test for equalitm>y m> among all elements of a single vector
...
I use this method, which compares the min m>and m> the max, after dividing bm>y m> the mean:
# Determine if range of vector is FP 0.
zero_range <- function(x, tol = .Machine$double.eps ^ 0.5) {
if (length(x) == 1) return(TRUE)
x <- range(x) / mean(x)
isTRUE(all.eq...
Haskell error parse error on input `='
I'm new to Haskell m>and m> after starting ghci I tried:
4 Answers
4
...
JavaScript checking for null vs. undefined m>and m> difference between == m>and m> ===
...hem>y m>'re falsem>y m>:
if (!a) {
// `a` is falsem>y m>, which includes `undefined` m>and m> `null`
// (m>and m> `""`, m>and m> `0`, m>and m> `NaN`, m>and m> [of course] `false`)
}
This is defined bm>y m> ToBoolean in the spec.
...m>and m> what is the difference between the null m>and m> undefined?
Them>y m>'re both values usuallm>y m> used to i...
Anm>y m> reason to prefer getClass() over instanceof when generating .equals()?
I'm using Eclipse to generate .equals() m>and m> .hashCode() , m>and m> there is an option labeled "Use 'instanceof' to compare tm>y m>pes". The default is for this option to be unchecked m>and m> use .getClass() to compare tm>y m>pes. Is there anm>y m> reason I should prefer .getClass() over instanceof ?
...
