大约有 43,000 项符合查询结果(耗时:0.0583秒) [XML]
Current time formatting with Javascript
..."PM". You have to code that yourself. To get the string you want, you at least need to store string representations of days and months:
var months = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"];
var days = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thurs...
Better way of getting time in milliseconds in javascript?
...in JavaScript of getting time in milliseconds using the date object, or at least a way to reuse that object, without having to instantiate a new object every time I need to get this value? I am asking this because I am trying to make a simple game engine in JavaScript, and when calculating the "delt...
Cluster analysis in R: determine the optimal number of clusters
... see how many clusters
# it finds to be optimal, set it to search for
# at least 1 model and up 20.
d_clust <- Mclust(as.matrix(d), G=1:20)
m.best <- dim(d_clust$z)[2]
cat("model-based optimal number of clusters:", m.best, "\n")
# 4 clusters
plot(d_clust)
Five. Affinity propagation (AP) ...
Sublime Text 2: Trim trailing white space on demand
...lace with: leave empty.
Click 'Replace All'
[^\S\r\n]+$ is Regex for "at least one whitespace character (so spaces and tabs but not newlines, using a double negation) followed by the end of the line"
Regular Expression must be enabled:
...
Can you do this HTML layout without using tables?
...r that box (in browsers that implement that part of the spec correctly, at least).
– Bobby Jack
Feb 9 '09 at 0:42
1
...
How to sort a list in Scala by two fields?
... different key, effectively eliminating the results of the first sort. At least on a List of Tuples it does.
– spreinhardt
Oct 8 '14 at 20:40
...
“open/close” SqlConnection or keep open?
...method call, only once for each page request. Thats what I have learned at least ;) Opening and closing costs time.
– David Mårtensson
Dec 14 '10 at 13:11
8
...
How to remove an element from a list by index
...t do in place removal of item from original list):
(Also this will be the least efficient method when working with Python list, but this could be useful (but not efficient, I reiterate) when working with user defined objects that do not support pop, yet do define a __getitem__ ):
>>> a = ...
What are some better ways to avoid the do-while(0); hack in C++?
...
There are times when using goto is actually the RIGHT answer - at least to those who are not brought up in the religious belief that "goto can never be the answer, no matter what the question is" - and this is one of those cases.
This code is using the hack of do { ... } while(0); for the...
Does Python have “private” variables in classes?
... classes can change a member variable simplifies the debugging process. At least, if the variable is protected by some scope. A similar concept is const functions in C++. I know that member variables weren't changed in there and so I don't even look at that method as the potential cause of a bad var...