大约有 16,000 项符合查询结果（耗时：0.0352秒） [XML]
Why '&&' and not '&'?
Why is && preferable to & and || preferable to | ?
16 Answers
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Getting the last revision number in SVN?
Using PHP, Perl, or Python (preferably PHP), I need a way to query an SVN database and find out the last revision number sent to SVN. I don't need anything other than that. It needs to be non-intensive (so I do it every 5 minutes as a cron job; SVN's performance should not be affected).
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Correct way to find max in an Array in Swift
I've so far got a simple (but potentially expensive) way:
12 Answers
12
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How to iterate over a JavaScript object?
I have an object in JavaScript:
18 Answers
18
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Get all non-unique values (i.e.: duplicate/more than one occurrence) in an array
...the same as the current. Assuming your sort algorithm is good, this should be less than O(n2):
const findDuplicates = (arr) => {
let sorted_arr = arr.slice().sort(); // You can define the comparing function here.
// JS by default uses a crappy string compare.
// (we use slice to cl...
How to calculate cumulative normal distribution?
I am looking for a function in Numpy or Scipy (or any rigorous Python library) that will give me the cumulative normal distribution function in Python.
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HttpClient not supporting PostAsJsonAsync method C#
I am trying to call a web API from my web application. I am using .Net 4.5 and while writing the code I am getting the error HttpClient does not contain a definition PostAsJsonAsync method.
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Make a UIButton programmatically in Swift
I am trying to build UI's programmatically. How do I get this action working? I am developing with Swift.
19 Answers
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CSS3 Rotate Animation
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Here is a demo. The correct animation CSS:
.image {
position: absolute;
top: 50%;
left: 50%;
width: 120px;
height: 120px;
margin:-60px 0 0 -60px;
-webkit-animation:spin 4s linear infinite;
-moz-animation:spin 4s linear infinite;
animation:spin 4s l...
Shortest distance between a point and a line segment
I need a basic function to find the shortest distance between a point and a line segment. Feel free to write the solution in any language you want; I can translate it into what I'm using (Javascript).
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