An array contains zero or more elements, where each array element can be assigned different types of values (string, integer, double, array or boolean). The list below shows some examples of arrays:
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Empty array: []
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Integer array: [10, 20, 30]
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String array: ['A', 'B', 'C']
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Mixed array: ['A', 19, 34.65]
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An array consists of an array object stored in memory and a variable that refers to the array object.
Several array variables can refer to the same array object. If you modify an array object via an array variable, all other array variables that refer to the same array object will be affected.
To be able to access the elements in an array, a zero based index is connected to each array object. The first element has index 0, the second has index 1 and so on.
