大约有 47,000 项符合查询结果(耗时:0.0441秒) [XML]

https://stackoverflow.com/ques... 

In C#, What is a monad?

... the concept. The reason is that monads are a functional language concept, and thus the examples are in languages I haven't worked with (since I haven't used a functional language in depth). I can't grasp the syntax deeply enough to follow the articles fully ... but I can tell there's something wort...
https://stackoverflow.com/ques... 

Can dplyr package be used for conditional mutating?

... TRUE ~ NA_real_)) Added - arithmetic/na_if If the values are numeric and the conditions (except for the default value of NA at the end) are mutually exclusive, as is the case in the question, then we can use an arithmetic expression such that each term is multiplied by the desired result using...
https://stackoverflow.com/ques... 

jQuery: what is the best way to restrict “number”-only input for textboxes? (allow decimal points)

... Update There is a new and very simple solution for this: It allows you to use any kind of input filter on a text <input>, including various numeric filters. This will correctly handle Copy+Paste, Drag+Drop, keyboard shortcuts, contex...
https://stackoverflow.com/ques... 

How to use chrome web inspector to view hover code

... hover code for a button? You will have to hover the mouse over the button and thus cannot use it (mouse) in the inspector. Are there any shortcuts or other ways to accomplish this in the inspector? ...
https://stackoverflow.com/ques... 

What are the best practices for structuring a large Meteor app with many HTML template files? [close

...r > directory for three top-level elements: <head>, <body>, and > <template>. The head and body sections are seperately concatenated > into a single head and body, which are transmitted to the client on > initial page load. > > Template sections, on the other han...
https://stackoverflow.com/ques... 

Swift double to string

...ntrolled with the printf formatting options, see: String Format Specifiers and printf(3). – zaph Mar 21 '15 at 13:14 ...
https://stackoverflow.com/ques... 

Xcode “Build and Archive” from command line

Xcode 3.2 provides an awesome new feature under the Build menu, "Build and Archive" which generates an .ipa file suitable for Ad Hoc distribution. You can also open the Organizer, go to "Archived Applications," and "Submit Application to iTunesConnect." ...
https://stackoverflow.com/ques... 

Map function in MATLAB?

...live without. Is there a better version out there? Is there a somewhat-standard functional programming library for MATLAB out there that I'm missing? ...
https://stackoverflow.com/ques... 

Finding last occurrence of substring in string, replacing that

So I have a long list of strings in the same format, and I want to find the last "." character in each one, and replace it with ". - ". I've tried using rfind, but I can't seem to utilize it properly to do this. ...
https://stackoverflow.com/ques... 

JS - get image width and height from the base64 code

...ve a base64 img encoded that you can find here . How can I get the height and the width of it? 4 Answers ...