大约有 45,000 项符合查询结果（耗时：0.0722秒） [XML]
Length of a JavaScript object
...ntion in JavaScript that you don't add things to Object.prototype, because it can break enumerations in various libraries. Adding methods to Object is usually safe, though.
Here's an update as of 2016 and widespread deployment of ES5 and beyond. For IE9+ and all other modern ES5+ capable browser...
Is char signed or unsigned by default?
In the book "Complete Reference of C" it is mentioned that char is by default unsigned.
7 Answers
...
How do I change the default location for Git Bash on Windows?
I am using Git on Windows 7 and access my repositories through Git Bash. How can I change the default location that Git Bash opens in a convenient folder when I start it?
...
Add only non-whitespace changes
I have my text editor to automatically trim trailing whitespace upon saving a file, and I am contributing to an open source project that has severe problems with trailing whitespace.
...
Update R using RStudio
...
You install a new version of R from the official website.
RStudio should automatically start with the new version when you relaunch it.
In case you need to do it manually, in RStudio, go to :Tools -> options -> General.
Check @micstr's answer for a more detailed walkth...
Are HTML comments inside script tags a best practice? [closed]
...ng practice is fairly commonplace in the inline JavaScript I have to work with:
10 Answers
...
How to detect IE11?
...
IE11 no longer reports as MSIE, according to this list of changes it's intentional to avoid mis-detection.
What you can do if you really want to know it's IE is to detect the Trident/ string in the user agent if navigator.appName returns Netscape, something like (the untested);
functi...
What is the difference between `let` and `var` in swift?
...Answer cannot be changed afterwards. This is why anything weak can't be written using let. They need to change during runtime and you must be using var instead.
The var defines an ordinary variable.
What is interesting:
The value of a constant doesn’t need to be known at compile time, but y...
HTTP authentication logout via PHP
...nts and user agents typically retain authentication
information indefinitely. HTTP/1.1. does not provide a method for a
server to direct clients to discard these cached credentials.
On the other hand, section 10.4.2 says:
If the request already included Authorization credentials, then ...
Restart node upon changing a file
...who is coming from PHP background the process of killing node and starting it again after every code change, seems very tedious. Is there any flag when starting a script with node to automatically restart node when code change is saved?
...