大约有 42,000 项符合查询结果(耗时:0.0455秒) [XML]

https://stackoverflow.com/ques... 

Can scripts be inserted with innerHTML?

...e script loads into the DOM, but it is never executed (at least in Firefox and Chrome). Is there a way to have scripts execute when inserting them with innerHTML ? ...
https://stackoverflow.com/ques... 

Is it possible to implement a Python for range loop without an iterator variable?

...range(10): pass ... >>> _ 9 >>> 1+2 3 >>> _ 9 And according to Python grammar, it is an acceptable variable name: identifier ::= (letter|"_") (letter | digit | "_")* share | ...
https://stackoverflow.com/ques... 

How do I output an ISO 8601 formatted string in JavaScript?

... best solution I've come across is to use the Moment.js javascript library and use the following code: To get the current ISO time with timezone information and milliseconds now = moment().format("YYYY-MM-DDTHH:mm:ss.SSSZZ") // "2013-03-08T20:11:11.234+0100" now = moment().utc().format("YYYY-MM-D...
https://stackoverflow.com/ques... 

Can someone give an example of cosine similarity, in a very simple, graphical way?

... want to know how similar these texts are, purely in terms of word counts (and ignoring word order). We begin by making a list of the words from both texts: me Julie loves Linda than more likes Jane Now we count the number of times each of these words appears in each text: me 2 2 Jane ...
https://stackoverflow.com/ques... 

Is 'switch' faster than 'if'?

...ntly increase performance in some scenarios, is as general as a switch is, and does not result in greater generated code size. But to see that, your test code would need a LOT more branches to see any difference. To answer your specific questions: Clang generates one that looks like this: test_s...
https://stackoverflow.com/ques... 

Querying DynamoDB by date

I'm coming from a relational database background and trying to work with amazon's DynamoDB 7 Answers ...
https://stackoverflow.com/ques... 

Does pandas iterrows have performance issues?

I have noticed very poor performance when using iterrows from pandas. 6 Answers 6 ...
https://stackoverflow.com/ques... 

Flatten an irregular list of lists

... Using generator functions can make your example a little easier to read and probably boost the performance. Python 2 def flatten(l): for el in l: if isinstance(el, collections.Iterable) and not isinstance(el, basestring): for sub in flatten(el): yield sub...
https://stackoverflow.com/ques... 

How to clear the interpreter console?

...keep a console window open with the Python interpreter running to test commands, dir() stuff, help() stuff , etc. 36 Ans...
https://stackoverflow.com/ques... 

Can regular expressions be used to match nested patterns? [duplicate]

...wn number of times? For example, can a regular expression match an opening and closing brace when there are an unknown number of open/close braces nested within the outer braces? ...