大约有 34,900 项符合查询结果（耗时：0.0295秒） [XML]
How to tell whether a point is to the right or left side of a line
...
Regexident
28.9k1010 gold badges9090 silver badges9898 bronze badges
answered Oct 13 '09 at 14:12
Eric BainvilleEric...
Fast check for NaN in NumPy
I'm looking for the fastest way to check for the occurrence of NaN ( np.nan ) in a NumPy array X . np.isnan(X) is out of the question, since it builds a boolean array of shape X.shape , which is potentially gigantic.
...
Truncate (not round) decimal places in SQL Server
...
JimmyJimmy
77.8k1616 gold badges113113 silver badges135135 bronze badges
...
jquery IDs with spaces
Does anyone know how to select an item in the DOM by ID with jQuery, when that ID has a space?
11 Answers
...
for each loop in Objective-C for accessing NSMutable dictionary
I am finding some difficulty in accessing mutable dictionary keys and values in Objective-C.
7 Answers
...
How to print a float with 2 decimal places in Java?
...
You can use the printf method, like so:
System.out.printf("%.2f", val);
In short, the %.2f syntax tells Java to return your variable (val) with 2 decimal places (.2) in decimal representation of a floating-point number (f) from the start of the format spe...
How to get an array of unique values from an array containing duplicates in JavaScript? [duplicate]
...u DO need to use semicolons! jsfiddle.net/bTNc2
– jack
Nov 15 '13 at 14:52
107
It's 2014 now, so ...
How do I convert a float number to a whole number in JavaScript?
I'd like to convert a float to a whole number in JavaScript. Actually, I'd like to know how to do BOTH of the standard conversions: by truncating and by rounding. And efficiently, not via converting to a string and parsing.
...
JavaScript curry: what are the practical applications?
I don’t think I’ve grokked currying yet. I understand what it does, and how to do it. I just can’t think of a situation I would use it.
...
VIM: Deleting from current position until a space
Often when developing I am confronted with a nested object that I'd like to delete from code in the middle of a line like this:
...