大约有 40,000 项符合查询结果（耗时：0.0488秒） [XML]
What is the purpose of wrapping whole Javascript files in anonymous functions like “(function(){ … }
...
It's usually to namespace (see later) and control the visibility of member functions and/or variables. Think of it like an object definition. The technical name for it is an Immediately Invoked Function Expression (IIFE). jQuery plug...
Get ffmpeg information in friendly way
...eed to tell ffprobe what information you want it to display (with the -show_format, -show_packets and -show_streams options) or it'll just give you blank output (like you mention in one of your comments).
For example, ffprobe -v quiet -print_format json -show_format -show_streams somefile.asf would...
Applying a function to every row of a table using dplyr?
...it reflects the fact that when you're doing row wise operations you're actually working with tuples from a list of vectors (the columns in a dataframe).
share
|
improve this answer
|
...
What's “wrong” with C++ wchar_t and wstrings? What are some alternatives to wide characters?
...e wchar_t is a distinct type whose values can represent distinct codes for all members of the largest extended character set specified among the supported locales (22.3.1).
...
Make a link use POST instead of GET
...aScript, with no jQuery — you could choose this if you don't want to install anything more than you already have.
<form name="myform" action="handle-data.php" method="post">
<label for="query">Search:</label>
<input type="text" name="query" id="query"/>
<button>...
Catching multiple exception types in one catch block
...fining the exceptions). Even given that there are exceptions you want to "fall through", you should still be able to define a hierarchy to match your needs.
abstract class MyExceptions extends Exception {}
abstract class LetterError extends MyExceptions {}
class AError extends LetterError {}
cla...
How to disassemble one single function using objdump?
I've got a binary installed on my system, and would like to look at the disassembly of a given function. Preferrably using objdump , but other solutions would be acceptable as well.
...
Hidden Features of VB.NET?
... It looks like someone could still create their own rule by calling the Rule constructor directly? If so, and if you wanted to stop this, could you declare the constructor as "Friend" in your library?
– Joel Coehoorn
Oct 7 '08 at 14:40
...
Attach parameter to button.addTarget action in Swift
...
I appreciate everyone saying use tags, but really you need to extend the UIButton class and simply add the object there..
Tags are a hopeless way round this. Extend the UIButton like this (in Swift 4)
import UIKit
class PassableUIButton: UIButton{
var params: Dic...
ORA-12514 TNS:listener does not currently know of service requested in connect descriptor
We have an application running locally where we're experiencing the following error:
25 Answers
...