forEachBegin="${an-EL-expr}"

It is used with the forEach attribute to specify the index (starting from 0) that the iteration shall begin at. If not specified, the iteration begins at the first element, i.e., 0 is assumed.

If forEachBegin is greater than or equals to the number of elements, no iteration is performed.

Note: forEachStatus.index always starts from 0, no matter what forEachBegin is.