大约有 15,000 项符合查询结果（耗时：0.0416秒） [XML]
Validating IPv4 addresses with regexp
... this is the most accurate and strict regex, it doesn't accept things like 000.021.01.0. it seems like most other answers here do and require additional regex to reject cases similar to that one - i.e. 0 starting numbers and an ip that ends with a .
...
Finding sum of elements in Swift array
...g on an iPhone 7 with latest Swift and XCode (a simple array filled with 1,000,000 UInt32 random values capped at 256 to prevent UInt32 overflow) interestingly shows the 'for' loop being just a hair faster (1.941 seconds versus 2.137 seconds), although that advantage is not present at 100,000 values...
Fastest way to check if a string matches a regexp in ruby?
...chmark:
require 'benchmark'
"test123" =~ /1/
=> 4
Benchmark.measure{ 1000000.times { "test123" =~ /1/ } }
=> 0.610000 0.000000 0.610000 ( 0.578133)
"test123"[/1/]
=> "1"
Benchmark.measure{ 1000000.times { "test123"[/1/] } }
=> 0.718000 0.000000 0.718000 ( 0.750010)
irb(...
Fast Linux File Count for a large number of files
...a particular directory when there are a very large number of files ( > 100,000).
18 Answers
...
mongodb/mongoose findMany - find all documents with IDs listed in array
...d({
'_id': { $in: [
mongoose.Types.ObjectId('4ed3ede8844f0f351100000c'),
mongoose.Types.ObjectId('4ed3f117a844e0471100000d'),
mongoose.Types.ObjectId('4ed3f18132f50c491100000e')
]}
}, function(err, docs){
console.log(docs);
});
This method will work well even ...
Outline effect to text
...oked text:
.strokeme {
color: white;
text-shadow: -1px -1px 0 #000, 1px -1px 0 #000, -1px 1px 0 #000, 1px 1px 0 #000;
}
<div class="strokeme">
This text should have a stroke in some browsers
</div>
I have made a demo for you here
And a hovered example is availab...
iPhone App Icons - Exact Radius?
....825
Icon.png - 57px - 10
Icon@2x.png - 114px - 20
Icon-72.png - 72px - 12.632
Icon-72@2x.png - 144px - 25.263
Icon-Small.png - 29px - 5.088
Icon-Small@2x.png - 58px - 10.175
Also, as mentioned in other answers, you don't actually want to crop any of the images you use in the binary or submit to A...
Easiest way to open a download window without navigating away from the page
... answered Mar 9 '17 at 13:37
0x000f0x000f
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...
Safe String to BigDecimal conversion
...d some BigDecimal values from the string. Let's say I have this String: "1,000,000,000.999999999999999" and I want to get a BigDecimal out of it. What is the way to do it?
...
Set Viewbag before Redirect
....new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f14497711%2fset-viewbag-before-redirect%23new-answer', 'question_page');
}
);
Post as a guest
...