大约有 48,000 项符合查询结果(耗时:0.0522秒) [XML]

https://stackoverflow.com/ques... 

Set custom attribute using JavaScript

... 202 Use the setAttribute method: document.getElementById('item1').setAttribute('data', "icon: 'ba...
https://stackoverflow.com/ques... 

Rails find_or_create_by more than one attribute?

...er.where(:member_id => 4, :group_id => 7).first_or_initialize Edit 2: Not all of these were factored out of rails just the attribute specific ones. https://github.com/rails/rails/blob/4-2-stable/guides/source/active_record_querying.md Example GroupMember.find_or_create_by_member_id_and_...
https://stackoverflow.com/ques... 

Convert list to tuple in Python

... Peter Mortensen 26.5k2121 gold badges9292 silver badges122122 bronze badges answered Oct 11 '12 at 9:15 rootroot ...
https://stackoverflow.com/ques... 

'float' vs. 'double' precision

...ary representation, not a decimal one. Single precision (float) gives you 23 bits of significand, 8 bits of exponent, and 1 sign bit. Double precision (double) gives you 52 bits of significand, 11 bits of exponent, and 1 sign bit. ...
https://stackoverflow.com/ques... 

Are SVG parameters such as 'xmlns' and 'version' needed?

... 217 All user agents (browsers) ignore the version attribute, so you can always drop that. If you ...
https://stackoverflow.com/ques... 

How do I validate a date string format in python?

... 233 >>> import datetime >>> def validate(date_text): try: datetime.d...
https://stackoverflow.com/ques... 

How to compare strings ignoring the case

... 277 You're looking for casecmp. It returns 0 if two strings are equal, case-insensitively. str1.c...
https://stackoverflow.com/ques... 

Anonymous recursive PHP functions

... answered Mar 19 '10 at 20:03 Derek HDerek H 10.2k66 gold badges3232 silver badges3838 bronze badges ...
https://stackoverflow.com/ques... 

How to get execution time in rails console?

... 242 timing = Benchmark.measure { Post.all } The various attributes of the object returned (Bench...
https://stackoverflow.com/ques... 

Usage of sys.stdout.flush() method

... | edited May 23 '17 at 12:18 Community♦ 111 silver badge answered Apr 4 '12 at 21:35 ...