大约有 40,000 项符合查询结果（耗时：0.0373秒） [XML]
Automatic counter in Ruby for each?
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As people have said, you can use
each_with_index
but if you want indices with an iterator different to "each" (for example, if you want to map with an index or something like that) you can concatenate enumerators with the each_with_index method, or simply use with_i...
How do I programmatically determine if there are uncommitted changes?
...ctions if there are uncommitted changes (either in the working tree or the index). What's the cleanest and most efficient way to do that? A command that exits with a return value of zero in one case and non-zero in the other would suit my purposes.
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Grasping the Node JS alternative to multithreading
...l so it can perform blocking operations and notify the main thread with a callback or event when things complete.
So I imagine that it will make limited use of another core for the thread pool, for example if you do a non-blocking file system read this is likely implemented by telling a thread fro...
how to split the ng-repeat data with three columns using bootstrap
...">
<div class="column" ng-repeat="item in row">
{{($parent.$index*row.length)+$index+1}}. {{item}}
</div>
</div>
Order items vertically
1 4
2 5
3 6
Regarding vertical columns (list top to bottom) rather than horizontal (left to right), the exact implementation de...
Is a URL allowed to contain a space?
Is a URI (specifically an HTTP URL) allowed to contain one or more space characters? If a URL must be encoded, is + just a commonly followed convention, or a legitimate alternative?
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Is there a combination of “LIKE” and “IN” in SQL?
...a*" OR "foo*" OR "batz*"')
The column you are querying must be full-text indexed.
Reference:
Building Full-Text Search Applications with Oracle Text
Understanding SQL Server Full-Text
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Show/hide 'div' using JavaScript
...ements) {
elements = elements.length ? elements : [elements];
for (var index = 0; index < elements.length; index++) {
elements[index].style.display = 'none';
}
}
// Usage:
hide(document.querySelectorAll('.target'));
hide(document.querySelector('.target'));
hide(document.getElementBy...
grep, but only certain file extensions
... some scripts to grep certain directories, but these directories contain all sorts of file types.
11 Answers
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How to remove item from list in C#?
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List<T> has two methods you can use.
RemoveAt(int index) can be used if you know the index of the item. For example:
resultlist.RemoveAt(1);
Or you can use Remove(T item):
var itemToRemove = resultlist.Single(r => r.Id == 2);
resultList.Remove(itemToRemove);
When yo...
Hook up Raspberry Pi via Ethernet to laptop without router? [closed]
I'm working on a balloon project with a Raspberry Pi. When we potentially recover the Raspberry Pi, it will most likely be in a rural location and I'd like to turn off the Pi at that point safely.
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