大约有 2,000 项符合查询结果（耗时：0.0135秒） [XML]
Using 'starts with' selector on individual class names
... or elsewhere in the class attribute strings.
<div id="1" class="apple orange lemon" />
<div id="2" class="orange applelemon banana" />
<div id="3" class="orange lemon apple" />
<div id="4" class="lemon orangeapple" />
<div id="5" class="lemon orange" />
var startsWit...
How to easily resize/optimize an image size with iOS?
...ecause it's easy to see when it's scaled without preserving aspect).
Light orange color marks areas that will be trimmed if you pass trim: true.
Aspect fit before and after scaling:
Another example of aspect fit:
Aspect fit with top alignment:
Aspect fill:
How to create composite primary key in SQL Server 2008
...
CREATE TABLE UserGroup
(
[User_Id] INT NOT NULL,
[Group_Id] INT NOT NULL
CONSTRAINT PK_UserGroup PRIMARY KEY NONCLUSTERED ([User_Id], [Group_Id])
)
share
|
...
How to implement the activity stream in a social network
...out 15 million activities.
It looks something like this:
id
user_id (int)
activity_type (tinyint)
source_id (int)
parent_id (int)
parent_type (tinyint)
time (datetime but a smaller type like int would be better)
activity_type tells me the type of activity...
Why is using the rails default_scope often recommend against?
...ELECT "posts".* FROM "posts" WHERE "posts"."published" = 't' AND "posts"."user_id" = ? [["user_id", 1]]
This looks like expected (make sure to scroll all the way to the right to see the part about the user_id).
Now we want to get the list of all posts - unpublished included - say for the logge...
Ruby on Rails vs ASP.NET MVC 3 for a .NET Guy? [closed]
...is that they're so different that you could go on all day about apples vs. oranges, but since your question is pretty non-specific, I'll just say:
If you consider yourself "a .NET guy," then you should learn a language which works very differently than C#, and a dynamic language like Ruby isn't a b...
to remove first and last element in array
...
var fruits = ["Banana", "Orange", "Apple", "Mango"];
var newFruits = fruits.slice(1, -1);
console.log(newFruits); // ["Orange", "Apple"];
Here, -1 denotes the last element in an array and 1 denotes the second element.
...
Laravel Eloquent: How to get only certain columns from joined tables
...emes.*', 'users.username')
->join('users', 'users.id', '=', 'themes.user_id')
->get();
share
|
improve this answer
|
follow
|
...
Python loop that also accesses previous and next values
...loop, and you'll have previous and next items in it:
mylist = ['banana', 'orange', 'apple', 'kiwi', 'tomato']
for previous, item, nxt in previous_and_next(mylist):
print "Item is now", item, "next is", nxt, "previous is", previous
The results:
Item is now banana next is orange previous is N...
Use 'import module' or 'from module import'?
...r example:
module foo:
bar = "apples"
module a:
import foo
foo.bar = "oranges" # update bar inside foo module object
module b:
import foo
print foo.bar # if executed after a's "foo.bar" assignment, will print "oranges"
However, if you import symbol names instead of modu...