You might look into Jobs or runspaces. Here is an example of Jobs: $block = { Param([string] $file) “[Do something]” } #Remove all jobs Get-Job | Remove-Job $MaxThreads = 4 #Start the jobs. Max 4 jobs running simultaneously. foreach($file in $files){ While ($(Get-Job -state running).count -ge $MaxThreads){ Start-Sleep -Milliseconds 3 } Start-Job -Scriptblock $Block -ArgumentList … Read more
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(); I see that this answer is still getting upvotes. Well, here’s a secret for ya: the above answer is still using a foreach. Please don’t upvote this … Read more
Rows effectively returns IEnumerable (DataRowCollection), so the compiler can only pick object as the type for var. Use Rows.Cast<DataRow> if you want to use var. Cast is defined on Enumerable, so you have to include System.Linq.
The map function returns an array of items and forEach just loop over them. To make this code work use : render() { const items = []; this.props.items .forEach(item => items.push( <li> <TodoItem id={item.id} key={item.id} text={item.text} /> </li> )) return( <ul>{items}</ul> ); }
You can observe isDirty to see if any of the object’s values have been modified since last save (if you are using Ember Data). Alternatively you can pass a comma separated list of properties to observes. This might be long if you have a lot of properties on your object, but will work. A third … Read more
You can use indexOf instead https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/indexOf function fn(array) { return (array.indexOf(2) === -1); } Also from the documentation for forEach – https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/forEach Note: There is no way to stop or break a forEach() loop other than by throwing an exception. If you need such behaviour, the .forEach() method is the wrong tool, use a plain … Read more
I’m not sure exactly what you mean by a “readonly loop” but I’m guessing that you want to know why this doesn’t compile: int[] ints = { 1, 2, 3 }; foreach (int x in ints) { x = 4; } The above code will give the following compile error: Cannot assign to ‘x’ because … Read more
The long and short of it is you can’t implement IUnknown. The same goes for Collection. They’re both Com objects that are unavailable for extension in VBA. You can create custom collections and do other very cool iterable things though.
If you want to use foreach, you can add an additional variable to control the number of iterations. For example: $i=0; foreach ($butters->users->user as $user) { if($i==10) break; $id = $user->id; $name = $user->screen_name; $profimg = $user->profile_image_url; echo “things”; $i++; }
Starting from Perl 5.8.1 map in void context is not expensive: map in void context is no longer expensive. map is now context aware, and will not construct a list if called in void context. But the postfix form of for may be more readable: perform_action($_) for @items;