I have arrays such as

var arrayVal_Int = [21, 53, 92, 79];   

var arrayVal_Alpha = [John, Christine, Lucy];  

var arrayVal_AlphaNumeric = [CT504, AP308, NK675];

• Above arrayVal_Int should be considered as (purely) numeric.


• arrayVal_Alpha and arrayVal_AlphaNumeric should be considered as strings.

I need to check that in JavaScript.