大约有 46,000 项符合查询结果(耗时:0.0825秒) [XML]
How to check if a value exists in a dictionary (python)
...t()
[0.32004380226135254, 0.31716084480285645, 0.3171098232269287]
EDIT: And in case you wonder why... the reason is that each of the above returns a different type of object, which may or may not be well suited for lookup operations:
>>> type(d.viewvalues())
<type 'dict_values'>
&...
Is there a difference between single and double quotes in Java?
Is there a difference between single and double quotes in Java?
4 Answers
4
...
MySQL: how to get the difference between two timestamps in seconds
...ence between two timestamps in seconds, or would I need to do that in PHP? And if so, how would I go about doing that?
4 An...
How to sort mongodb with pymongo
...
.sort(), in pymongo, takes key and direction as parameters.
So if you want to sort by, let's say, id then you should .sort("_id", 1)
For multiple fields:
.sort([("field1", pymongo.ASCENDING), ("field2", pymongo.DESCENDING)])
...
Requirejs why and when to use shim config
...D, but you need to manage their dependencies. For example, in the Backbone and Underscore example above: you know that Backbone requires Underscore, so suppose you wrote your code like this:
require(['underscore', 'backbone']
, function( Underscore, Backbone ) {
// do something with Backbone
...
git diff file against its last change
...ble to get git to produce a diff between a specific file as it exists now, and as it existed before the last commit that changed it?
...
select and update database record with a single queryset
How do I run an update and select statements on the same queryset rather than having to do two queries:
- one to select the object
- and one to update the object
...
How do I check two or more conditions in one ?
...
If you are using JSP 2.0 and above It will come with the EL support:
so that you can write in plain english and use and with empty operators to write your test:
<c:if test="${(empty object_1.attribute_A) and (empty object_2.attribute_B)}">
...
What is the difference between compile code and executable code?
I always use the terms compile and build interchangeably.
6 Answers
6
...
Disabling highlighting of current line in the Visual Studio editor
...mple way to disable this highlighting? Otherwise, which parameter in Fonts and Colors dialog controls the background color of the currently selected line in the editor?
...
