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...y-1.8.7-p174
# ./configure --prefix=/usr/local/ruby
# make && make install
设置Ruby环境变量
# cd ~
# vi .bash_profile
添加下面一行
export PATH=$PATH:/usr/local/ruby/bin
保存退出:wq
# . .bash_profile
...
How to clear jQuery validation error messages?
...ry validation plugin for client side validation.
Function editUser() is called on click of 'Edit User' button, which displays error messages.
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HTML 5: Is it , , or ?
I've tried checking other answers , but I'm still confused — especially after seeing W3schools HTML 5 reference .
27 An...
Why do we declare Loggers static final?
...ic final Logger log = LoggerFactory.getLogger(Foo.class);
The former way allows you to use the same logger name (name of the actual class) in all classes throughout the inheritance hierarchy. So if Bar extends Foo, both will log to Bar logger. Some find it more intuitive.
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Why is JavaScript called JavaScript, since it has nothing to do with Java? [closed]
...
JavaScript, was originally named Mocha, later it was renamed to LiveScript, and then to JavaScript.
The LiveScript to JavaScript name change came because Netscape and Sun did a license agreement.
The language was then submitted for standarizatio...
TypeError: not all arguments converted during string formatting python
The program is supposed to take in two names, and if they are the same length it should check if they are the same word. If it's the same word it will print "The names are the same" . If they are the same length but with different letters it will print "The names are different but the same length...
Accessing the web page's HTTP Headers in JavaScript
... exactly equal to the current.
Use the following JavaScript code to get all the HTTP headers by performing a get request:
var req = new XMLHttpRequest();
req.open('GET', document.location, false);
req.send(null);
var headers = req.getAllResponseHeaders().toLowerCase();
alert(headers);
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Trim trailing spaces in Xcode
...
Starting from Xcode 4.4 whitespaces will be trimmed automatically by default, unless the line is all whitespace. You can also activate Including whitespace-only lines to fix this, which is not active by default.
Go to Xcode > Preferences > Text Editing > While editing
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How to prevent a jQuery Ajax request from caching in Internet Explorer?
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You can disable caching globally using $.ajaxSetup(), for example:
$.ajaxSetup({ cache: false });
This appends a timestamp to the querystring when making the request. To turn cache off for a particular $.ajax() call, set cache: false on it locally, ...
Why is using a wild card with a Java import statement bad?
...t and com.mycompany.calendar.Event, and so you can't even compile.
You actually manage only to import one (only one of your two imports does .*), but it's the wrong one, and you struggle to figure out why your code is claiming the type is wrong.
When you compile your code there is no com.mycompany.c...