IndexOf methods in C # arrays

var array=[' REG ', ' 2018 ', ' 2018 ';

Array.indexof (' REG ')//0

Array.indexof (' R ')//-1

Array.indexof (' 2018′)//1

Array.indexof (2018)//-1

• Arr.indexof (' orange ') output 0 because ' orange ' is the No. 0 element of the array, matches to and returns the subscript.
• Arr.indexof (' o ') output-1 because this method does not perform a indexOf match on a per-element basis.
• Arr.indexof (' 2016′) Output 1 because this method matches from scratch until the next table of the first array element is returned, instead of returning all matching subscripts.
• Arr.indexof (2016) output-1 Note: Implicit type conversions are not done here.

IndexOf methods in C # arrays