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Can anyone explain IEnumerable and IEnumerator to me? [closed]
... by implementing IEnumerable (and by creating an enumerator class that its new GetEnumerator method will return).
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What is a method that can be used to increment letters?
... while (true) {
yield this.next();
}
}
}
Usage:
const ids = new StringIdGenerator();
ids.next(); // 'a'
ids.next(); // 'b'
ids.next(); // 'c'
// ...
ids.next(); // 'z'
ids.next(); // 'A'
ids.next(); // 'B'
// ...
ids.next(); // 'Z'
ids.next(); // 'aa'
ids.next(); // 'ab'
ids.next()...
Retrieving the last record in each group - MySQL
...Adam Rackis' answer. Let me know if you want to reclaim your answer on the new question.
– Robert Harvey
Feb 21 '12 at 18:06
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CSS3 selector :first-of-type with class name?
...iven other selector:
:nth-child(1 of p.myclass)
Previous drafts used a new pseudo-class, :nth-match(), so you may see that syntax in some discussions of the feature:
:nth-match(1 of p.myclass)
This has now been implemented in WebKit, and is thus available in Safari, but that appears to be the...
Replace Default Null Values Returned From Left Outer Join
...
I knew it had to be easy but for some reason, I was blocked on how to do it. Thanks.
– Brett Bim
Nov 2 '09 at 22:59
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Why is there no Tree class in .NET?
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answered Jun 2 '09 at 21:51
Alun HarfordAlun Harford
2,9601515 silver badges2525 bronze badges
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Optional Methods in Java Interface
... want to add the
notion of modifiability to the Hierarchy. You need four new
interfaces: ModifiableCollection, ModifiableSet, ModifiableList, and
ModifiableMap. What was previously a simple hierarchy is now a messy
heterarchy. Also, you need a new Iterator interface for use with
unmodifiab...
常用Git命令汇总 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...支之间比较
分支
git branch -r #查看远程分支
git branch new_branch_name #新建一个分支
git branch --merged #查看已经被合并到当前分支的分支
git branch --no-merged #查看未被合并到当前分支的分支
git checkout branch_name #切换分支
git checkout...
How do I change the color of the text in a UIPickerView under iOS 7?
... current text from UIPickerViewModel::GetTitle
NSAttributedString ns = new NSAttributedString (title, null, UIColor.White); // null = font, use current font
return ns;
}
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How to compare files from two different branches?
...e a diff of changes in master since it diverged from mybranch (but without new changes since then in mybranch).
In all cases, the -- separator before the file name indicates the end of command line flags. This is optional unless Git will get confused if the argument refers to a commit or a file, bu...