大约有 40,000 项符合查询结果(耗时:0.0302秒) [XML]
Deprecated: mysql_connect()
... - if you only have a production server and no development environment for testing, you're doing it wronger - if you're not fixing errors/warnings in development before releasing to production, you're doing it wrongest
– HorusKol
Feb 4 '16 at 5:11
...
How to run a single RSpec test?
...cus tag to the it, context or describe to run only that block:
it 'runs a test', :focus do
...test code
end
RSpec documentation:
https://www.rubydoc.info/github/rspec/rspec-core/RSpec/Core/Configuration#filter_run_when_matching-instance_method
...
In Python, how do I index a list with another list?
...
A quick timing test (no pysco or anything, so make of it what you will) showed the list comprehension 2.5x faster than the loop (1000 elements, repeated 10000 times).
– James Hopkin
Jun 18 '09 at 12:00...
java.util.regex - importance of Pattern.compile()?
...ormance benefit can be quite significant.
I did a quick benchmark:
@Test
public void recompile() {
var before = Instant.now();
for (int i = 0; i < 1_000_000; i++) {
Pattern.compile("ab").matcher("abcde").matches();
}
System.out.println("recom...
Why can't I use a list as a dict key in python?
...std. dev. of 7 runs, 10000000 loops each)
As you can see, the membership test in our stupidlists_set is even slower than a linear scan over the whole lists_list, while you have the expected super fast lookup time (factor 500) in a set without loads of hash collisions.
TL; DR: you can use tuple(...
What happened to “HelveticaNeue-Italic” on iOS 7.0.3
...
FYI: I just tested and the bug still exists in iOS 7.0.4.
– David Lari
Nov 14 '13 at 20:01
add a comment
...
Dynamically load a JavaScript file
...cr" + "ipt>");
}
</script>
It worked great in every browser I tested it in: IE6/7, Firefox, Safari, Opera.
Update: jQuery-less version:
<script>
var js = ["scripts/jquery.dimensions.js", "scripts/shadedborder.js", "scripts/jqmodal.js", "scripts/main.js"];
for (var i = 0, l =...
How can I determine whether a 2D Point is within a Polygon?
...rying to create a fast 2D point inside polygon algorithm, for use in hit-testing (e.g. Polygon.contains(p:Point) ). Suggestions for effective techniques would be appreciated.
...
What are dictionary view objects?
...ike", in that they don't support indexing, so what you can do with them is test for membership and iterate over them (because keys are hashable and unique, the keys and items views are more "set-like" in that they don't contain duplicates).
You can store them and use them multiple times, like the li...
When would you use delegates in C#? [closed]
... handy (although the example is a little contrived).
string sTableName = "test";
string sQuery = "SELECT COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME='" + sTableName + "'";
DataProvider.UseReader( sQuery,
delegate( System.Data.IDataReader reader )
{
Console.WriteLin...
