大约有 32,000 项符合查询结果（耗时：0.0394秒） [XML]
AngularJS - Binding radio buttons to models with boolean values
...... The data- prefix is to make the HTML valid (although without that also all modern browsers handle the HTML correctly)
– kumarharsh
Dec 19 '14 at 6:07
7
...
Injecting $scope into an angular service function()
...table stuff), but is a Scope object. Many scope objects can be created (usually prototypically inheriting from a parent scope). The root of all scopes is the $rootScope and you can create a new child-scope using the $new() method of any scope (including the $rootScope).
The purpose of a Scope is t...
When would you use a List instead of a Dictionary?
...ionary is fast for lookup operations, because is using hash function internally. That means, all the keys must be unique in dictionary.
Consider this examples:
List<KeyValuePair<int, string>> pairs = new List<KeyValuePair<int, string>>();
pairs.Add(new KeyValuePair<int,...
What is the difference between '/' and '//' when used for division?
...floating point division, and the latter is floor division, sometimes also called integer division.
In Python 2.2 or later in the 2.x line, there is no difference for integers unless you perform a from __future__ import division, which causes Python 2.x to adopt the 3.x behavior.
Regardless of the ...
Proper use of beginBackgroundTaskWithExpirationHandler
...l need to wrap it in a background task. It's also very important that you call endBackgroundTask when you're finished - otherwise the app will be killed after its allotted time has expired.
Mine tend look something like this:
- (void) doUpdate
{
dispatch_async(dispatch_get_global_queue(DISPAT...
How to Select Columns in Editors (Atom,Notepad++, Kate, VIM, Sublime, Textpad,etc) and IDEs (NetBean
...
And it is called "Block Selection Mode" in Kate, if you, like me, were searching for it in the Edit menu.
– ReneSac
Apr 19 '15 at 20:52
...
Rails find_or_create_by more than one attribute?
There is a handy dynamic attribute in active-record called find_or_create_by:
5 Answers
...
Why is the time complexity of both DFS and BFS O( V + E )
...
If in an adjacency list, each vertex is connected to all other vertices the would the complexity be equivalent to O(V+E)=O(V+V^2)=O(V^2). E=V^2 because the most number of edges = V^2.
– Max
Feb 24 '17 at 8:29
...
Rails 4 LIKE query - ActiveRecord adds quotes
...
Should really be easy to create a func to do this dynamically with a list of attributes
– cevaris
Feb 28 '16 at 17:16
...
How to echo shell commands as they are executed
In a shell script, how do I echo all shell commands called and expand any variable names?
13 Answers
...