If statement and toBoolean

Hthrhthr12 · February 12, 2018, 7:05am

Why [1][1] is undefined and will be evaluated false, it is an array so it should be true?

chrisofarabia · February 12, 2018, 7:21am

What do you get if the expression evaluated is changed to [1][0]?

Paul_Wilkins · February 12, 2018, 7:53am

[1] is an array that contains only one value at index 0. Asking [1] for index 1, which is what happens when doing [1][1] results in undefined, because the array has no index 1 location.

system · May 14, 2018, 2:53pm

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