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

James Reich
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James Reich
Front End Web Development Techdegree Graduate 14,854 Points
Posted by James Reich
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James Reich
Front End Web Development Techdegree Graduate 14,854 Points

arr.charAt() vs arr[index]

What is the benefit of arr.charAt(0) instead of using arr[0]?

1 Answer

Steven Parker
Steven Parker
231,248 Points
Steven Parker
Steven Parker
231,248 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)    // ''