PinnedArifkhancharAt()charAt() always returns string. charAt() is full meaning character charAt() all time provide index of number below code example…3 min read·Nov 2, 2020----
Arifkhanconcat()concat() it use many purpose. It work like push() method. push() method use that any string or number into end of the array. Same concat()…1 min read·Nov 2, 2020----