大约有 17,000 项符合查询结果（耗时：0.0389秒） [XML]
Specifying and saving a figure with exact size in pixels
...the same pixel dimensions as the im array.
Note: the OP specified no axes, etc. which is what this solution does exactly. If one wants to add axes, ticks, etc. my preferred approach is to do that on a separate plot, saving with transparent=True (PNG or PDF) then overlay the latter on the image. This...
C# Object Pooling Pattern implementation
...d/required lifetime of objects, the real reason that the pool is required, etc. Typically pools are special-purpose - thread pools, connection pools, etc. - because it is easier to optimize one when you know exactly what the resource does and more importantly have control over how that resource is ...
What's a good rate limiting algorithm?
...ard_message();
allowance -= 1.0;
There are no datastructures, timers etc. in this solution and it works cleanly :) To see this, 'allowance' grows at speed 5/8 units per seconds at most, i.e. at most five units per eight seconds. Every message that is forwarded deducts one unit, so you can't se...
Why is arr = [] faster than arr = new Array?
...ntext which may contain the "arguments" object, locally defined variables, etc. If we cannot find it in the Activation object, we begin looking up the scope chain until we reach the global scope. If nothing is found, we throw a ReferenceError.
Once we've located the variable declaration, we invoke...
How do the likely/unlikely macros in the Linux kernel work and what is their benefit?
...nch prediction does work. Taken branches are problematic for instruction-fetch and decode even when they're predicted perfectly. Some CPUs statically predict branches that aren't in their history table, usually with assume not-taken for forward branches. Intel CPUs don't work that way: they don't...
Cross-browser custom styling for file upload button [duplicate]
...ould still work just fine, so could you send me a link of a jsfiddle/jsbin/etc of the code that doesn't work in IE8?
– Joeytje50
Nov 30 '14 at 19:11
...
A CORS POST request works from plain JavaScript, but why not with jQuery?
...m headers or allow the use of credentials (username, password, or cookies, etc), read on.
I think I found the answer! (4 hours and a lot of cursing later)
//This does not work!!
Access-Control-Allow-Headers: *
You need to manually specify all the headers you will accept (at least that was the ...
What's the best online payment processing solution? [closed]
...lable to non-U.S. companies, easy to setup, reliable, cheap, customizable, etc. What are your experiences?
13 Answers
...
Determine project root from a running node.js application
...y on a global variable, which means that you can't easily reuse components/etc.
process.cwd()
This returns the current working directory. Not reliable at all, as it's entirely dependent on what directory the process was launched from:
$ cd /home/demo/
$ mkdir subdir
$ echo "console.log(process.c...
CASCADE DELETE just once
...traint on some_table and all tables that have constraints on those tables, etc.
Postgres supports CASCADE with TRUNCATE command:
TRUNCATE some_table CASCADE;
Handily this is transactional (i.e. can be rolled back), although it is not fully isolated from other concurrent transactions, and has sev...