大约有 22,700 项符合查询结果（耗时：0.0259秒） [XML]
How can I remove an element from a list?
...
I don't know R at all, but a bit of creative googling led me here: http://tolstoy.newcastle.edu.au/R/help/05/04/1919.html
The key quote from there:
I do not find explicit documentation for R on how to remove elements from lists, but trial and error tells me
myList[[5]] <- NULL
...
What guidelines for HTML email design are there? [closed]
...a URL in the link text - you will anger 'phishing' filters (eg <a href="http://domain.tld">www.someotherdomain.tld</a> is bad)
Remember that the "fold" on webmail clients tends to be extremely high up the page (on a 1024x768 screen, most interfaces won't show more than a hundred pixels o...
How to open a new tab using Selenium WebDriver?
...selenium-webdriver'
driver = Selenium::WebDriver.for :firefox
driver.get('http://stackoverflow.com/')
body = driver.find_element(:tag_name => 'body')
body.send_keys(:control, 't')
driver.quit
Python
from selenium import webdriver
from selenium.webdriver.common.keys import Keys
driver = web...
How to use ScrollView in Android?
...ust make the top-level layout a ScrollView:
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true">
<TableLayout
android:layout_width="match_parent"...
How is the undo tree used in Vim?
...igured I'd mention that I wrote an undo tree visualization plugin for Vim: http://bitbucket.org/sjl/gundo.vim/
Personally I found that graphing the tree like this was the only way I could make sense of it.
share
|
...
Google Maps JS API v3 - Simple Multiple Marker Example
...educe it to:
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
<title>Google Maps Multiple Markers</title>
<script src="http://maps.google.com/maps/api/js?sensor=false"
type="text/javascrip...
JSONP with ASP.NET Web API
...d to go with an JQuery AJAX call that looks like this:
$.ajax({
url: 'http://myurl.com',
type: 'GET',
dataType: 'jsonp',
success: function (data) {
alert(data.MyProperty);
}
})
It seems to work very well.
...
How to get parameters from the URL with JSP
...ng (the data following the question mark on the URL). For example, the URL http://hostname.com?p1=v1&p2=v2 contains two request parameters - - p1 and p2. In a POST request, the request parameters are taken from both query string and the posted data which is encoded in the body of the request.
T...
Clear icon inside input text
...rable__clear">&times;</i>
</span>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
Using only a <input class="clearable" type="text"> (No additional elements)
set a class="clearable" and play with it's backg...
npm install error - MSB3428: Could not load the Visual C++ component “VCBuild.exe”
...cmd line as Administrator
optional part, if you need to use a proxy:
set HTTP_PROXY=http://login:password@your-proxy-host:your-proxy-port
set HTTPS_PROXY=http://login:password@your-proxy-host:your-proxy-port
run this:
npm install -g --production windows-build-tools
No need for Visual Studio. ...