大约有 24,000 项符合查询结果（耗时：0.0387秒） [XML]
How to quickly and conveniently disable all console.log statements in my code?
...ny way to turn off all console.log statements in my JavaScript code, for testing purposes?
28 Answers
...
mmap() vs. reading blocks
...or many real world cases there's no sure way to show one is faster without testing your actual application and NOT a benchmark.
(Sorry for necro'ing this question, but I was looking for an answer and this question kept coming up at the top of Google results.)
...
ruby inheritance vs mixins
...leton class of the object:
module M
def m
puts 'm'
end
end
class Test
end
Test.extend M
Test.m
We can access the singleton class with the singleton_class method:
Test.singleton_class.ancestors
=> [#<Class:Test>, M, #<Class:Object>, ...
Ruby provides some hooks for mod...
How to get the function name from within that function?
... for an anonymous function there won't be a match
}
I have not run unit tests on this, or verified implementation
differences, but in principle it should work, if not leave a comment.
Note: won't work on bound functions
Note: that caller and callee are considered deprecated.
[1] I include it he...
Length of generator output [duplicate]
...xecution (including memory consumption), will make you surprised:
```
1: test_list.py:8: 0.492 KiB
gen = (i for i in data*1000); t0 = monotonic(); len(list(gen))
('list, sec', 1.9684218849870376)
2: test_list_compr.py:8: 0.867 KiB
gen = (i for i in data*1000); t0 = monotonic(); len([i for i i...
Javascript Drag and drop for touch devices [closed]
...ems in that preventDefault was preventing scrolling on the ipad - I am now testing for draggable items and it works great so far.
if (event.target.id == 'draggable_item' ) {
event.preventDefault();
}
share
|
...
How can I redirect HTTP requests made from an iPad?
...
Another, easier way to do this is with a tool I wrote: testProxy. No configuration necessary: github.com/edwinm/testProxy
– edwin
May 11 '17 at 17:27
...
“f” after number
...a small, minimal snippet ie like this
#import <Cocoa/Cocoa.h>
void test() {
CGRect r = CGRectMake(0.0f, 0.0f, 320.0f, 50.0f);
NSLog(@"%f", r.size.width);
}
Then compile it to assembler with the -S option.
gcc -S test.m
Save the assembler output in the test.s file and remove .0f fro...
The performance impact of using instanceof in Java
...t is a little faster than doing an instanceof, but the difference my quick test found was 10-20ms over 10,000,000 iterations. If "object" isn't an ObjT, though, catching the exception was over 3000x slower - over 31,000ms vs ~10ms for the instanceof.
– Steve
Fe...
Check if table exists and if it doesn't exist, create it in SQL Server 2008
...reate a sample database with a table by the below script:
CREATE DATABASE Test
GO
USE Test
GO
CREATE TABLE dbo.tblTest (Id INT, Name NVARCHAR(50))
Approach 1: Using INFORMATION_SCHEMA.TABLES view
We can write a query like below to check if a tblTest Table exists in the current database.
IF EXIS...