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Question 11/56
Considering type coercion, what does the following expression evaluate to?
True + '13' + NaN
True + '13' + NaN
Recent Comments (The most recent comments are at the top.)
the answer is : NaN easy to trie in console.
The correct answers are A and B:
A. console.assert(sum3([-3, 2]) == -1);
B. console.assert(sum3([0]) == 0);
Option C is not a valid test because it asserts that the result of sum3([1, '2']) is equal to the string '12', which is not the expected behavior. Option D is also not a valid test because the result of sum3(['hello', 2, 3, 4]) is not NaN, but rather the concatenated string 'hello23'.
How?Can anyone explain