大约有 40,000 项符合查询结果(耗时:0.0554秒) [XML]

https://stackoverflow.com/ques... 

Targeting only Firefox with CSS

...more on "using selector hacks" and on how the example you provided specifically works? Thanks. – jj_ Nov 30 '14 at 11:15 1 ...
https://stackoverflow.com/ques... 

What is a good Hash Function?

... For doing "normal" hash table lookups on basically any kind of data - this one by Paul Hsieh is the best I've ever used. http://www.azillionmonkeys.com/qed/hash.html If you care about cryptographically secure or anything else more advanced, then YMMV. If you just want...
https://stackoverflow.com/ques... 

Rename specific column(s) in pandas

I've got a dataframe called data . How would I rename the only one column header? For example gdp to log(gdp) ? 5 Answe...
https://stackoverflow.com/ques... 

Use gulp to select and move directories and their files

I'm currently using gulp to call a bash script that cleans my dist/ directory and moves the appropriate files to the clean directory. I would like this to be done with gulp because I am not sure the script would work on a non *nix file system. So far, I'm using the gulp-clean module to clean the...
https://stackoverflow.com/ques... 

Are nested try/except blocks in python a good programming practice?

...EAFP. Personally, I prefer to avoid nesting when it's not necessary: def __getattribute__(self, item): try: return object.__getattribute__(item) except AttributeError: pass # fallback to dict try: return self.dict[item] except KeyError: raise Attrib...
https://stackoverflow.com/ques... 

Why does ++[[]][+[]]+[+[]] return the string “10”?

...array ([]). Due to references it's wrong to say [[]][0] === [], but let's call the inner array A to avoid the wrong notation. ++ before its operand means “increment by one and return the incremented result”. So ++[[]][0] is equivalent to Number(A) + 1 (or +A + 1). Again, we can simplify the me...
https://stackoverflow.com/ques... 

Requirejs domReady plugin vs Jquery $(document).ready()?

... It seems like all the key points were already hit, but a few details fell through the cracks. Mainly: domReady It is both a plugin and a module. If you include it in the the requirements array w/ a trailing ! your module won't execute un...
https://stackoverflow.com/ques... 

Pandas percentage of total with groupby

... is a table of some kind, so 100 * x doesn't intuitively make sense (especially when some of the cells contain strings like AZ, ...). – dhardy Feb 6 '15 at 9:42 6 ...
https://stackoverflow.com/ques... 

Is it possible to ping a server from Javascript?

...ther parts of the source but you get the idea). function Pinger_ping(ip, callback) { if(!this.inUse) { this.inUse = true; this.callback = callback this.ip = ip; var _that = this; this.img = new Image(); this.img.onload = function() {_that.good();}; this.img.onerro...
https://stackoverflow.com/ques... 

How to change field name in Django REST Framework

...get_alternate_name(self, obj): return obj.alternate_name Additionally, you can use serializers.CharField with source attribute: class ParkSerializer(serializers.ModelSerializer): location = serializers.CharField(source='other_fields') class Meta: model = Park fiel...