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How do I copy items from list to list without foreach?
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You could try this:
List<Int32> copy = new List<Int32>(original);
or if you're using C# 3 and .NET 3.5, with Linq, you can do this:
List<Int32> copy = original.ToList();
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Is it possible to “await yield return DoSomethingAsync()”
...ed combine those operations into a single Task which can be awaited.
Task<IEnumerable<string>> DownLoadAllUrls(string[] urls)
{
return Task.WhenAll(from url in urls select DownloadHtmlAsync(url));
}
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Git fetch remote branch
... This made a mess for me, it created a local branch named origin/<branch> which is now ambiguous to the remote branch origin/<branch> and I don't know how to get rid of the crazy local branch!
– Alan Moore
Jul 9 '15 at 17:00
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Type safety: Unchecked cast
...n available to the garbage collector. So, don't do that, use:
private Map<String, String> someMap = (HashMap<String, String>)getApplicationContext().getBean("someMap");
Secondly, the compiler is complaining that you cast the object to a HashMap without checking if it is a HashMap. But...
Java LinkedHashMap get first or last entry
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I know that I came too late but I would like to offer some alternatives, not something extraordinary but some cases that none mentioned here. In case that someone doesn't care so much for efficiency but he wants something with more simplicity(perhaps find the last entry value with one...
How does HashSet compare elements for equality?
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It uses an IEqualityComparer<T> (EqualityComparer<T>.Default unless you specify a different one on construction).
When you add an element to the set, it will find the hash code using IEqualityComparer<T>.GetHashCode, and store both the...
Center content in responsive bootstrap navbar
... class around the navbar. This will center the links inside the navbar:
<nav class="navbar navbar-default">
<!-- here's where you put the container tag -->
<div class="container">
<div class="navbar-header">
<!-- header and collapsed icon here -->
<...
How can I convert comma separated string into a List
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Here is one way of doing it:
List<int> TagIds = tags.Split(',').Select(int.Parse).ToList();
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PHP array_filter with arguments
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As an alternative to @Charles's solution using closures, you can actually find an example in the comments on the documentation page. The idea is that you create an object with the desired state ($num) and the callback method (taking...
Retrieving Property name from lambda expression
... if the expression is not a property.
public PropertyInfo GetPropertyInfo<TSource, TProperty>(
TSource source,
Expression<Func<TSource, TProperty>> propertyLambda)
{
Type type = typeof(TSource);
MemberExpression member = propertyLambda.Body as MemberExpression;
...