result = cat and dog ,cat,and,dog result.length = 4 result.index = 3 result.lastIndex = undefined result.input = My cat and dog are black.

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Here is the same script with break tags added for formatting:

result = cat and dog ,cat,and,dog
result.length = 4
result.index = 3
result.lastIndex = undefined
result.input = My cat and dog are black.