大约有 43,000 项符合查询结果（耗时：0.0634秒） [XML]
ToList()— does it create a new list?
...ublic static void RunChangeList()
{
var objs = Enumerable.Range(0, 10).Select(_ => new MyObject() { SimpleInt = 0 });
var whatInt = ChangeToList(objs); // whatInt gets 0
}
public static int ChangeToList(IEnumerable<MyObject> objects)
{
var objectList = objects.ToList();
o...
How do I print bold text in Python?
...ere WYSIWYG, the need for HTML itself would be mitigated -- you would just select text in your editor and bold it instead of typing out the HTML.
Other programs use different systems -- a lot of answers explained a completely different system for printing bold text on terminals. I'm glad you found ...
How to get the CPU Usage in C#?
...de to do it:
private void button1_Click(object sender, EventArgs e)
{
selectedServer = "JS000943";
listBox1.Items.Add(GetProcessorIdleTime(selectedServer).ToString());
}
private static int GetProcessorIdleTime(string selectedServer)
{
try
{
var searcher = new
Man...
Check if an element contains a class in JavaScript?
...
Element.matches()
element.matches(selectorString)
According to MDN Web Docs:
The Element.matches() method returns true if the element would be selected by the specified selector string; otherwise, returns false.
Therefore, you can use Element.matches() to d...
Get index of array element faster than O(n)
...gt; [6] }
This allows for a quick search for duplicate entries:
indices.select { |k, v| v.size > 1 }
=> { 1 => [0, 3], 2 => [1, 4], 3 => [2, 5] }
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...
Does HTTP use UDP?
...n't generate raw TCP frames (nor UDP ones for that matter) they do have to select the transport to use, and for normal HTTP that's always TCP. The newer QUIC pseudo-protocol does however use UDP.
– Alnitak
Sep 27 '18 at 9:16
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Eclipse menus don't show up after upgrading to Ubuntu 13.10
...s in Eclipse (Help, Window, Run) they don’t show up. Only menu stubs and selection are visible.
15 Answers
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Laravel Check If Related Model Exists
...method calls through to an Eloquent query Builder, which is set up to only select the related objects. That Builder in turn passes unknown method calls through to its underlying query Builder.
This means you can use the exists() or count() methods directly from a relation object:
$model->relati...
How to merge two sorted arrays into a sorted array? [closed]
...
+1, Thanks for sharing. One question: why did you select the type of array and type of variable 'temp', long?
– Hengameh
Jul 13 '15 at 3:49
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How do I add indices to MySQL tables?
...t I don't think it is used while I query my table. Do I have to change the select query when using an index ?
– Ced
Aug 12 '15 at 16:04
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