大约有 30,000 项符合查询结果（耗时：0.0457秒） [XML]
Run JavaScript code on window close or page refresh?
...; does the same (i.e. prevents the default behavior) and it is more semantically correct.
– collimarco
Sep 24 '13 at 15:12
1
...
Eloquent Collection: Counting and Detect Empty
...ou’re working on. The Query Builder essentially builds a query until you call a method where it will execute the query and hit the database (e.g. when you call certain methods like ->all() ->first() ->lists() and others). Those methods also exist on the Collection object, which can get re...
Set focus on TextBox in WPF from view model
...
edited Feb 24 at 0:14
Callum Watkins
2,22222 gold badges2323 silver badges4040 bronze badges
answered Aug 31 '09 at 10:13
...
Standard Android menu icons, for example refresh [closed]
The Android SDK offers the standard menu icons via android.R.drawable.X . However, some standard icons, such as ic_menu_refresh (the refresh icon), are missing from android.R .
...
Why is there no Char.Empty like String.Empty?
... you don't want to pass it to another "yield" method (like those of LINQ), call immediately a ".ToArray()" after the "Take(5)"... otherwise, the "RemoveChars + Take" chain will be executed every time you access the variable in a "traditional" fashion (for example, every you call a "Count()" on it, o...
C# how to create a Guid value?
One field of our struct is Guid type. How to generate a valid value for it?
11 Answers
...
Create an Array of Arraylists
...for actually answering the question. There is no logical reason to automatically presume a list is preferable to an array without further context.
– Special Sauce
Nov 19 '15 at 13:23
...
How do I determine the current operating system with Node.js
...e the OS module better, it's even in the documentation. os.platform specifically
– alessioalex
Dec 30 '11 at 20:58
94
...
Remove directory which is not empty
...
There is a module for this called rimraf (https://npmjs.org/package/rimraf). It provides the same functionality as rm -Rf
Async usage:
var rimraf = require("rimraf");
rimraf("/some/directory", function () { console.log("done"); });
Sync usage:
rim...
What algorithm can be used for packing rectangles of different sizes into the smallest rectangle pos
... (0,1/5]. The strip is also divided into five regions R1, ··· , R5. Basically, some items of width in the range (1/i+1, 1/i], for 1 <= i <= 4, are packed to region Ri by BL. Since BL leaves a space of increasing width from top to bottom at the right side of the strip, UD takes this advantag...