大约有 40,000 项符合查询结果（耗时：0.0375秒） [XML]
How do you make Vim unhighlight what you searched for? [duplicate]
...
Just clarifying @steamer25's comment. :set nohlsearch turns off search highlighting completely :nohlsearch or :noh will clear the current highlight, but leave you in hlsearch mode for the next search.
– Hovis Biddle
Mar 25 '1...
Gradients in Internet Explorer 9
Does anyone know the vendor prefix for gradients within IE9 or are we still supposed to still be using their proprietry filters?
...
Forced naming of parameters in Python
In Python you may have a function definition:
11 Answers
11
...
Change Bootstrap tooltip color
...
You can use this way:
<a href="#" data-toggle="tooltip" data-placement="bottom"
title="" data-original-title="Tooltip on bottom"
class="red-tooltip">Tooltip on bottom</a>
And in the CSS:
.tooltip-arrow,
.red-tooltip + .tooltip > .to...
What does “O(1) access time” mean?
... like 14 nanoseconds, or three minutes no matter the amount of data in the set.
O(n) means it takes an amount of time linear with the size of the set, so a set twice the size will take twice the time. You probably don't want to put a million objects into one of these.
...
Decoding and verifying JWT token using System.IdentityModel.Tokens.Jwt
...ually for JWT, this will contain a single ClaimsIdentity object that has a set of claims representing the properties of the original JWT.
JwtSecurityTokenHandler defines some additional overloads for ValidateToken, in particular, it has a ClaimsPrincipal ValidateToken(JwtSecurityToken, TokenValidat...
What is the difference between encode/decode?
...that is useful: there are encodings that have nothing to do with character sets, and thus can be applied to 8-bit strings in a meaningful way:
>>> s.encode('zip')
'x\x9c;\xbc\r\x00\x02>\x01z'
You are right, though: the ambiguous usage of "encoding" for both these applications is... aw...
Do fragments really need an empty constructor?
...tInt(EXTRA_TITLE, title);
bdl.putString(EXTRA_MESSAGE, message);
f.setArguments(bdl);
return f;
}
And of course grabbing the args this way:
@Override
public void onCreate(Bundle savedInstanceState) {
title = getArguments().getInt(EXTRA_TITLE);
message = getArguments().getStrin...
How can you diff two pipelines in Bash?
... read from to actually read from an already-open file descriptor that bash set up before exec'ing the command. (i.e. bash uses pipe(2) before fork, and then dup2 to redirect from the output of quux to an input file descriptor for diff, on fd 63.)
On a system with no "magical" /dev/fd or /proc/self...
What's the fastest way to merge/join data.frames in R?
...eSQL databases as well.
library(plyr)
library(data.table)
library(sqldf)
set.seed(123)
N <- 1e5
d1 <- data.frame(x=sample(N,N), y1=rnorm(N))
d2 <- data.frame(x=sample(N,N), y2=rnorm(N))
g1 <- sample(1:1000, N, replace = TRUE)
g2<- sample(1:1000, N, replace = TRUE)
d <- data.fram...