大约有 3,300 项符合查询结果（耗时：0.0205秒） [XML]
Why does Ruby have both private and protected methods?
...(main):003:1> def not_so_private_method
irb(main):004:2> puts "Hello World"
irb(main):005:2> end
irb(main):006:1> end
=> nil
irb(main):007:0> foo = A.new
=> #<A:0x31688f>
irb(main):009:0> foo.send :not_so_private_method
Hello World
=> nil
...
What is the formal difference in Scala between braces and parentheses, and when should they be used?
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Hello, when you say List{1, 2, 3}.reduceLeft(_ + _) is invalid, do you mean it has syntax err? But I findthat code can compile. I put my code here
– calvin
Aug 1 '19 at 4:52
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Node.js / Express.js - How does app.router work?
...lder and a route:
app.get('/test.html', function(req, res) {
res.send('Hello from route handler');
});
Which one gets sent to a client requesting http://server/test.html? Whichever middleware is given to use first.
If you do this:
app.use(express.static(__dirname + '/public'));
app.use(app.rou...
Why do we need fibers
...at if an object has other iterators other than each?
irb(main):001:0> "Hello".chars.select { |c| c =~ /[A-Z]/ }
=> ["H"]
irb(main):002:0> "Hello".bytes.sort
=> [72, 101, 108, 108, 111]
Calling the iterator with no block returns an Enumerator, and then you can call other Enumerable met...
Send email using java
...il.com") );
msg.setSentDate( new Date());
msg.setSubject( "Hello World!" );
//--[ Create the body of the mail
msg.setText( "Hello from my first e-mail sent with JavaMail" );
//--[ Ask the Transport class to send our mail message
Transport.send( msg )...
Getting the Value of a UITextField as keystrokes are entered?
...tField:(id)sender {
greetingLabel.text = [NSString stringWithFormat:@"Hello %@", ((UITextField *)sender).text];
}
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How do I overload the [] operator in C# [duplicate]
... new SampleCollection<string>();
stringCollection[0] = "Hello, World";
System.Console.WriteLine(stringCollection[0]);
}
}
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What are FTL files
...reeMarker/article.html
http://viralpatel.net/blogs/freemaker-template-hello-world-tutorial/
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regular expression: match any word until first space
...in a line. For some reason, this does not: ([^ ])+
– hello_there_andy
Mar 4 '19 at 20:36
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C#: how to get first char of a string?
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Just another approach:
string mystr = "hello";
MessageBox.show(mystr.Substring(0, 1));
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