大约有 43,000 项符合查询结果（耗时：0.0576秒） [XML]
How to print out more than 20 items (documents) in MongoDB's shell?
...
The tojson() was exactly what I was looking for to convert it from DBQuery thank you!
– Mark Pieszak - Trilon.io
Oct 26 '15 at 17:10
add a comment
...
Real World Example of the Strategy Pattern
I've been reading about the OCP principal and how to use the strategy pattern to accomplish this.
17 Answers
...
How to use Python's pip to download and keep the zipped files for a package?
...rent working directory by default), but it performs the additional step of converting any source packages to wheels.
It conveniently supports requirements files:
pip wheel -r requirements.txt -w .\outputdir
Add the --no-deps argument if you only want the specifically requested packages:
pip whe...
Comment the interface, implementation or both?
... For C#, you can use <inheritdoc />, which is supported by SandCastle. (More info...)
– Daniel A.A. Pelsmaeker
Jul 8 '12 at 19:51
2
...
Understanding what 'type' keyword does in Scala
I am new to Scala and I could not really find a lot about the type keyword. I am trying to understand what the following expression may mean:
...
Get index of array element faster than O(n)
...
Convert the array into a hash. Then look for the key.
array = ['a', 'b', 'c']
hash = Hash[array.map.with_index.to_a] # => {"a"=>0, "b"=>1, "c"=>2}
hash['b'] # => 1
...
How to save a dictionary to a file?
...n ndarray (doing a type(read_dictionary) reveals so) and .item() basically converts that element to a python scalar object which is a dictionary as stated here
– abhyudayasrinet
Sep 7 '18 at 0:42
...
How to make the python interpreter correctly handle non-ASCII characters in string operations?
... If you are getting UnicodeDecodeError: 'ascii', then try to convert string into ''UTF-8' format before applying encoding function.
– Sateesh
May 14 at 8:06
add ...
How To Save Canvas As An Image With canvas.toDataURL()?
... create a dummy HTML anchor, and download the image from there like...
// Convert canvas to image
document.getElementById('btn-download').addEventListener("click", function(e) {
var canvas = document.querySelector('#my-canvas');
var dataURL = canvas.toDataURL("image/jpeg", 1.0);
downl...
ASP.NET MVC - Should business logic exist in controllers?
.....}
}
This assumes that tax is calculate by an external service, and requires your model to know about interfaces to your external services.
This would make your controller look something like:
public class OrdersController{
public OrdersController(ITaxService taxService, IOrdersRepo...