大约有 48,000 项符合查询结果（耗时：0.0544秒） [XML]
Format date in a specific timezone
I'm using Moment.js to parse and format dates in my web app. As part of a JSON object, my backend server sends dates as a number of milliseconds from the UTC epoch (Unix offset).
...
How to identify numpy types in python?
....g. numpy.ma.MaskedArray not a numpy enough type?
– panda-34
Mar 10 '16 at 13:02
If you want anything in numpy.* you j...
difference between width auto and width 100 percent
...ial width of a block level element like div or p is auto. This makes it expand to occupy all available horizontal space within its containing block. If it has any horizontal padding or border, the widths of those do not add to the total width of the element.
Width 100%
On the other hand, if y...
How to encrypt/decrypt data in php?
I'm currently a student and I'm studying PHP, I'm trying to make a simple encrypt/decrypt of data in PHP. I made some online research and some of them were quite confusing(at least for me).
...
How to keep indent for second line in ordered lists via CSS?
...ry string (id), it is used to connect the counter-reset, counter-increment and counter() properties.
– user123444555621
Aug 8 '13 at 18:04
...
ASP.NET Identity DbContext confusion
...ay you can have the context be aware of any relations between your classes and the IdentityUser and Roles of the IdentityDbContext.
There is very little overhead in the IdentityDbContext, it is basically a regular DbContext with two DbSets. One for the users and one for the roles.
...
Enable Vim Syntax Highlighting By Default
I know how to turn syntax highlighting on and off in vim by running this in the editor:
6 Answers
...
Can you use if/else conditions in CSS?
...class="normal">Text</p>
<p class="active">Text</p>
and in your CSS file:
p.normal {
background-position : 150px 8px;
}
p.active {
background-position : 4px 8px;
}
That's the CSS way to do it.
Then there are CSS preprocessors like Sass. You can use conditionals there...
Using HTML5/JavaScript to generate and save a file
I've been fiddling with WebGL lately, and have gotten a Collada reader working. Problem is it's pretty slow (Collada is a very verbose format), so I'm going to start converting files to a easier to use format (probably JSON). I already have the code to parse the file in JavaScript, so I may as well ...
How do I append one string to another in Python?
...
If you only have one reference to a string and you concatenate another string to the end, CPython now special cases this and tries to extend the string in place.
The end result is that the operation is amortized O(n).
e.g.
s = ""
for i in range(n):
s+=str(i)
...