大约有 47,000 项符合查询结果(耗时:0.0759秒) [XML]
Fastest way to serialize and deserialize .NET objects
...
answered Nov 10 '10 at 10:46
Marc Gravell♦Marc Gravell
888k227227 gold badges23562356 silver badges27202720 bronze badges
...
How do I get the first n characters of a string without checking the size or going out of bounds?
...
Here's a neat solution:
String upToNCharacters = s.substring(0, Math.min(s.length(), n));
Opinion: while this solution is "neat", I think it is actually less readable than a solution that uses if / else in the obvious way. If the reader hasn't seen this trick, he/she has to think ...
Fastest way to tell if two files have the same contents in Unix/Linux?
...
410
I believe cmp will stop at the first byte difference:
cmp --silent $old $new || echo "files are...
Simple explanation of clojure protocols
...lojure itself.
Clojure has actually already had Protocols since version 1.0: Seq is a Protocol, for example. But until 1.2, you couldn't write Protocols in Clojure, you had to write them in the host language.
share
...
Double negation (!!) in javascript - what is the purpose? [duplicate]
...ates it once, converting values like so:
undefined to true
null to true
+0 to true
-0 to true
'' to true
NaN to true
false to true
All other expressions to false
Then the other ! negates it again. A concise cast to boolean, exactly equivalent to ToBoolean simply because ! is defined as its negat...
What does %>% mean in R [duplicate]
...Length Petal.Width Species
1 5.1 3.5 1.4 0.2 setosa
2 4.9 3.0 1.4 0.2 setosa
3 4.7 3.2 1.3 0.2 setosa
4 4.6 3.1 1.5 0.2 setosa
5 5.0 3.6 ...
SQL Server: Make all UPPER case to Proper Case/Title Case
...DF that will do the trick...
create function ProperCase(@Text as varchar(8000))
returns varchar(8000)
as
begin
declare @Reset bit;
declare @Ret varchar(8000);
declare @i int;
declare @c char(1);
if @Text is null
return null;
select @Reset = 1, @i = 1, @Ret = '';
while (@i <=...
Javascript reduce() on Object
...}
}
const total = Object.values(add).reduce((t, {value}) => t + value, 0)
console.log(total) // 6
or simply:
const add = {
a: 1,
b: 2,
c: 3
}
const total = Object.values(add).reduce((t, n) => t + n)
console.log(total) // 6
...
Canary release strategy vs. Blue/Green
...
Dave SchweisguthDave Schweisguth
30.4k99 gold badges8484 silver badges106106 bronze badges
...
How to pass an object into a state using UI-router?
...
In version 0.2.13, You should be able to pass objects into $state.go,
$state.go('myState', {myParam: {some: 'thing'}})
$stateProvider.state('myState', {
url: '/myState/{myParam:json}',
params: {myParam:...
