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JavaScript JavaScript Array Iteration Methods Combining Array Methods Combining filter() and map()

1 Answer

Steven Parker
Steven Parker
218,596 Points

At one time, the benefit was reliable broswer compatibility when not all browsers recognized the bracket syntax.

Now, they mostly do the same thing except when given unconventional arguments. For example:

'abc'[true]        // undefined
'abc'.charAt(true) // 'b'
'abc'[3]           // undefined
'abc'.charAt(3)    // ''