kuroko/test/testPythonFootgun.krk

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# This is how you can emulate Python's semantics for default variables.
let l = []
def foo(x=l):
x.append("more")
print(x)
foo() # → ['more']
foo() # → ['more', 'more']
foo([1,2]) # → [1, 2, 'more']
foo() # → ['more', 'more', 'more']
foo() # → ['more', 'more', 'more', 'more']
foo(['a', 'b']) # → ['a', 'b', 'more']