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I've been using Python a while and I bumped into this operator "^=" for the first time from this link.
def solution(A):
result = 0
for number in A:
result ^= number
return result
Of course, I did some googling, but I can't seem to find this operator. What does it do?
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Operators are special symbols in Python that carry out arithmetic or logical computation. The value that the operator operates on is called the operand. For example: >>> 2+3 5. Here, + is the operator that performs addition. 2 and 3 are the operands and 5 is the output of the operation.
The operator >= can be used to compare numeric data types as well as lists and tuples. For a list or tuple, the "greater than or equal to" operator iterates over the lists or tuples and evaluates the elements of both the left and right operands.
itemgetter operator is a built-in module that contains many operators. itemgetter(n) constructs a function that assumes an iterable object (e.g. list, tuple, set) as input, and fetches the n-th element out of it. — python docs. Example:1 Sorting list of tuples based on the third element in the tuple.
The
^operator yields the bitwise XOR (exclusive OR) of its arguments, which must be integers.
https://docs.python.org/3/reference/expressions.html#binary-bitwise-operations
As with all the other _= operators, ^= assigns the result back to the variable: a =^ b is eqivalent to a = a ^ b.
As a function it is __ixor__ (or operator.ixor), and may have different behaviour for non-integer types.
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