大约有 47,000 项符合查询结果(耗时:0.0553秒) [XML]

https://stackoverflow.com/ques... 

How to plot two histograms together in R?

I am using R and I have two data frames: carrots and cucumbers. Each data frame has a single numeric column which lists the length of all measured carrots (total: 100k carrots) and cucumbers (total: 50k cucumbers). ...
https://stackoverflow.com/ques... 

How can I detect when the mouse leaves the window?

...answer has aged a lot. This type of behavior is usually desired while implementing drag-drop behavior on an html page. The solution below was tested on IE 8.0.6, FireFox 3.6.6, Opera 10.53, and Safari 4 on an MS Windows XP machine. First a little function from Peter-Paul Koch; cross browser event h...
https://stackoverflow.com/ques... 

AngularJS : What is a factory?

...on Angular.js and overall I find it to be an interesting and powerful framework. 4 Answers ...
https://stackoverflow.com/ques... 

How to fade to display: inline-block

...hould be added invisible, and fade in when they are fully loaded. The elements need a display: inline-block style. 6 Answ...
https://stackoverflow.com/ques... 

ModelState.AddModelError - How can I add an error that isn't for a property?

...ies, as usual you call: ModelState.AddModelError(string key, string errorMessage); but use an empty string for the key: ModelState.AddModelError(string.Empty, "There is something wrong with Foo."); The error message will present itself in the <%: Html.ValidationSummary() %> as you'd exp...
https://stackoverflow.com/ques... 

What's the right way to decode a string that has special HTML entities in it? [duplicate]

Say I get some JSON back from a service request that looks like this: 7 Answers 7 ...
https://stackoverflow.com/ques... 

Android: How to handle right to left swipe gestures

...android.view.View.OnTouchListener; public class OnSwipeTouchListener implements OnTouchListener { private final GestureDetector gestureDetector; public OnSwipeTouchListener (Context ctx){ gestureDetector = new GestureDetector(ctx, new GestureListener()); } @Override p...
https://stackoverflow.com/ques... 

ASP.NET MVC 4 Custom Authorize Attribute with Permission Codes (without roles)

...rivilegeLevels = string.Join("", GetUserRights(httpContext.User.Identity.Name.ToString())); // Call another method to get rights of the user from DB return privilegeLevels.Contains(this.AccessLevel); } } You can redirect an unauthorised user in your custom AuthorisationAttr...
https://stackoverflow.com/ques... 

How can I return an empty IEnumerable?

...suggestions given in this question , I've decided to modify this original method and ask if there are any values in the IEnumarable return it, if not return an IEnumerable with no values. ...
https://stackoverflow.com/ques... 

Dynamic variable names in Bash

... Use an associative array, with command names as keys. # Requires bash 4, though declare -A magic_variable=() function grep_search() { magic_variable[$1]=$( ls | tail -1 ) echo ${magic_variable[$1]} } If you can't use associative arrays (e.g., you must su...