大约有 47,000 项符合查询结果(耗时:0.0415秒) [XML]

https://stackoverflow.com/ques... 

IntelliJ IDEA generating serialVersionUID

...| Reveal Log in ...) for exceptions, encrypted home directory on Linux is known to cause problems because of the kernel bug. – CrazyCoder Oct 16 '12 at 10:53 1 ...
https://stackoverflow.com/ques... 

What does 'var that = this;' mean in JavaScript?

...r.active = false; var activateStarter = function(){ // 'this' now points to the global scope // 'this.starter' is undefined, so we use 'that' instead. that.starter.active = true; // you could also use car.starter, but using 'that' gives // us more consis...
https://stackoverflow.com/ques... 

Function overloading by return type?

...nt join " ", localtime(); # printed "58 11 2 14 0 109 3 13 0" for me right now print scalar localtime(); # printed "Wed Jan 14 02:12:44 2009" for me right now. Every operator in Perl does something in scalar context and something in list context, and they may be different, as illustrated. (This i...
https://stackoverflow.com/ques... 

Remove insignificant trailing zeros from a number?

... @w00t Oh, sorry, I understand now. I was the way I tested when I made mine (see link above). Yours doesn't fail when you use toFixed, because the number is guaranteed to have a dot, but it was failing in my tests because I wanted the regex to work for any...
https://stackoverflow.com/ques... 

What is the motivation for bringing Symbols to ES6?

As you may know they are planning to include new Symbol primitive type in ECMAScript 6 (not to mention some other crazy stuff). I always thought that the :symbol notion in Ruby is needless; we could easily use plain strings instead, like we do in JavaScript. And now they decide to complicate thi...
https://stackoverflow.com/ques... 

How to select last two characters of a string

... EDIT: 2020: use string.slice(-2) as others say - see below. now 2016 just string.substr(-2) should do the trick (not substring(!)) taken from MDN Syntax str.substr(start[, length]) Parameters start Location at which to begin extracting characters. If a negati...
https://stackoverflow.com/ques... 

Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)

...t; mysql, the status was STOP. Just restart it and it works fine on my mac now. share | improve this answer | follow | ...
https://stackoverflow.com/ques... 

JavaScript global event mechanism

...ough... Update: it doesn't work in Opera, but I'm hacking Dragonfly right now to see what it gets. Suggestion about hacking Dragonfly came from this question: Mimic Window. onerror in Opera using javascript share ...
https://stackoverflow.com/ques... 

bundler vs RVM vs gems vs RubyGems vs gemsets vs system ruby [closed]

...all the packages (while the gems are the packages themselves). Rubygems is now part of Ruby. Bundler is what makes managing gems bearable. Based on your Gemfile, a simple call to bundler using bundle install will download and install all the required gems. Using standard gem command, you would have...
https://stackoverflow.com/ques... 

vertical-align with Bootstrap 3

...ly recommend you to use flexbox (as stated in @Haschem answer), since it's now supported everywhere. Demos link: - Bootstrap 3 - Bootstrap 4 alpha 6 You still can use a custom class when you need it: .vcenter { display: inline-block; vertical-align: middle; float:...