Javascript long integer

I have seen one of the weirdest things in javascript. The server side (spring): @RequestMapping(value = “/foo”, method = RequestMethod.GET) @ResponseBody public Long foo() { return 793548328091516928L; } I return a single long value and: $.get(‘/foo’).done(function(data){ console.log(data); }); It represents the long integer as “793548328091516900” replacing (rounding indeed) the last two digits with 0s. When … Read more

Counting positive integer elements in a list with Python list comprehensions

I have a list of integers and I need to count how many of them are > 0. I’m currently doing it with a list comprehension that looks like this: sum([1 for x in frequencies if x > 0]) It seems like a decent comprehension but I don’t really like the “1”; it seems like … Read more

Numpy integer nan [duplicate]

This question already has answers here: NumPy or Pandas: Keeping array type as integer while having a NaN value (9 answers) Closed 8 years ago. Is there a way to store NaN in a Numpy array of integers? I get: a=np.array([1],dtype=long) a[0]=np.nan Traceback (most recent call last): File “<stdin>”, line 1, in <module> ValueError: cannot … Read more

What is the differences between Int and Integer in Scala?

I was working with a variable that I had declared as an Integer and discovered that > is not a member of Integer. Here’s a simple example: scala> i warning: there were deprecation warnings; re-run with -deprecation for details res28: Integer = 3 scala> i > 3 <console>:6: error: value > is not a member … Read more