大约有 40,000 项符合查询结果（耗时：0.0550秒） [XML]
Do you use NULL or 0 (zero) for pointers in C++?
...ded. That's less common these days.
If you have to name the null pointer, call it nullptr; that's what it's called in C++11. Then, nullptr will be a keyword.
That said, don't sweat the small stuff.
share
|
...
Why do access tokens expire?
...
This is very much implementation specific, but the general idea is to allow providers to issue short term access tokens with long term refresh tokens. Why?
Many providers support bearer tokens which are very weak security-wise. By making them short-lived and requiring refresh, they limit the ...
How do I fix “Failed to sync vcpu reg” error?
...to use the Intel HAX x86 emulator for Windows (8, if that matters). I installed everything and created an AVD for the android version, and everything appears correct, but when I run it, I get this output:
...
Bootstrap 3 and Youtube in Modal
...
Autoplay is against the Youtube API terms. Just got an app rejected using webview in the Android app marketplace...
– giorgio79
Sep 16 '16 at 20:48
...
Using Rails 3.1, where do you put your “page specific” JavaScript code?
To my understanding, all of your JavaScript gets merged into 1 file. Rails does this by default when it adds //= require_tree . to the bottom of your application.js manifest file.
...
How to pause for specific amount of time? (Excel/VBA)
...lare PtrSafe Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As LongPtr)
Call it in your macro like so:
Sub Macro1()
'
' Macro1 Macro
'
Do
Calculate
Sleep (1000) ' delay 1 second
Loop
End Sub
share
|
...
When to throw an exception?
...throws an exception.
This is comparable to the "loaded question" logical fallacy. Every function asks a question. If the input it is given makes that question a fallacy, then throw an exception. This line is harder to draw with functions that return void, but the bottom line is: if the function's a...
How do I get a Date without time in Java?
...e much clearer if you're able to use types which represent what you're actually trying to do.
There are many, many other reasons to use Joda Time or java.time instead of the built-in java.util types - they're generally far better APIs. You can always convert to/from a java.util.Date at the boundari...
Spring vs EJB. Can Spring replace EJB? [closed]
...t Java EE app server to another. But that means staying away from any and all vendor-specific extensions that lock you in to one vendor.
Spring ports easily between app servers (e.g., WebLogic, Tomcat, JBOSS, etc.) because it doesn't depend on them.
However, you are locked into Spring.
Spring en...
How to simulate a mouse click using JavaScript?
...tchEvent(evt);
Demo: http://jsfiddle.net/DerekL/932wyok6/
This works on all modern browsers. For old browsers including IE, MouseEvent.initMouseEvent will have to be used unfortunately though it's deprecated.
var evt = document.createEvent("MouseEvents");
evt.initMouseEvent("click", canBubble, ...