大约有 47,000 项符合查询结果(耗时:0.0528秒) [XML]

https://stackoverflow.com/ques... 

How to calculate time difference in java?

... java.time.Duration; import java.time.Instant; ... Instant start = Instant.now(); //your code Instant end = Instant.now(); Duration timeElapsed = Duration.between(start, end); System.out.println("Time taken: "+ timeElapsed.toMillis() +" milliseconds"); ...
https://stackoverflow.com/ques... 

How to profile a bash shell script slow startup?

...2 2> >(tee /tmp/sample-time.$$.log | sed -u 's/^.*$/now/' | date -f - +%s.%N >/tmp/sample-time.$$.tim) set -x Doing this will run date only once. There is a quick demo/test to show how it work: for i in {1..4};do echo now;sleep .05;done| date -f - +%N ...
https://stackoverflow.com/ques... 

What are -moz- and -webkit-? [duplicate]

...o explicitly looking to turn on new features. Incidentally, so far as you know, is it a single flag to to turn on all experimental features, or a checklist to turn on individual features one-by-one? – David says reinstate Monica Aug 6 '13 at 14:47 ...
https://stackoverflow.com/ques... 

Sample random rows in dataframe

... sample_frac) have been superseded by slice_sample, though they remain for now. – Matt_B Sep 4 at 2:50 add a comment  |  ...
https://stackoverflow.com/ques... 

JavaScript closures vs. anonymous functions

...ree variable. That free variable is called an upvalue of the closure F. Now let's use this to figure out who uses closures and who doesn't (for the sake of explanation I have named the functions): Case 1: Your Friend's Program for (var i = 0; i < 10; i++) { (function f() { var i2...
https://stackoverflow.com/ques... 

How do I compare two DateTime objects in PHP 5.2.8?

...jects can be compared using comparison operators. $date1 = new DateTime("now"); $date2 = new DateTime("tomorrow"); var_dump($date1 == $date2); // false var_dump($date1 < $date2); // true var_dump($date1 > $date2); // false For PHP versions before 5.2.2 (actually for any version), you can ...
https://stackoverflow.com/ques... 

Java Security: Illegal key size or default parameters?

...ed a question about this earlier, but it didn't get answered right and led nowhere. 19 Answers ...
https://stackoverflow.com/ques... 

JavaScript and Threads

...ript Worker Threads Apart from from Gears there's nothing available right now, but there's plenty of talk about how to implement this so I guess watch this question as the answer will no doubt change in future. Here's the relevant documentation for Gears: WorkerPool API WHATWG has a Draft Recomme...
https://stackoverflow.com/ques... 

Javascript library for human-friendly relative date formatting [closed]

... Since I wrote this answer, a well known library available is moment.js. There are libraries available, but it is trivial to implement it yourself. Just use a handful of conditions. Assume date is an instantiated Date object for the time you want to make a ...
https://stackoverflow.com/ques... 

How to fix Error: “Could not find schema information for the attribute/element” by creating schema

...e- app.xsd which I saved to the root directory. The errors dissapeared but now i get a warning: "The global element 'configuration' has aleady been declared". Any idea on how to fix this? – Brian McCarthy Mar 15 '11 at 16:10 ...