大约有 46,000 项符合查询结果（耗时：0.0608秒） [XML]
Most efficient way to make the first character of a String lower case?
... are operations per second, the more the better.
Tests
test1 was first Andy's and Hllink's approach:
string = Character.toLowerCase(string.charAt(0)) + string.substring(1);
test2 was second Andy's approach. It is also Introspector.decapitalize() suggested by Daniel, but without two if statemen...
Getting LaTeX into R Plots
...
As stolen from here, the following command correctly uses LaTeX to draw the title:
plot(1, main=expression(beta[1]))
See ?plotmath for more details.
share
|
im...
jQuery: How can i create a simple overlay?
...simply put, a div that stays fixed on the screen (no matter if you scroll) and has some sort of opacity.
This will be your CSS for cross browser opacity of 0.5:
#overlay {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
background-color: #000;
filter:alpha(...
How do I export UIImage array as a movie?
...
Take a look at AVAssetWriter and the rest of the AVFoundation framework. The writer has an input of type AVAssetWriterInput, which in turn has a method called appendSampleBuffer: that lets you add individual frames to a video stream. Essentially you’ll...
HTML table with 100% width, with vertical scroll inside tbody [duplicate]
How can I set for <table> 100% width and put only inside <tbody> vertical scroll for some height?
13 Answer...
Node.js vs .Net performance
I've read a lot about Node.js being fast and able to accommodate large amounts of load. Does anyone have any real world evidence of this vs other frameworks, particularly .Net? Most of the articles i've read are anecdotal or don't have comparisons to .Net.
...
How do I set the rounded corner radius of a color drawable using xml?
On the android website, there is a section about color drawables . Defining these drawables in xml looks like this:
3 Ans...
How can I deploy/push only a subdirectory of my git repo to Heroku?
I have a project that uses Serve and is version controlled using Git. Serve creates an output folder with static files that I want to deploy to Heroku.
...
Progress indicator during pandas operations
I regularly perform pandas operations on data frames in excess of 15 million or so rows and I'd love to have access to a progress indicator for particular operations.
...
Why does (1 in [1,0] == True) evaluate to False?
When I was looking at answers to this question , I found I didn't understand my own answer.
1 Answer
...