Enumerable.indexOf Method
Returns the index where the element equal to value first appears in the sequence, optionally
using an equality comparer to compare the value to elements in the sequence.
This method is static.
Parameters
- source
-
Type: IEnumerable
The enumerable to find the first index of value.
- value
-
Type: Object
The value to search for in the sequence.
- equalityComparer
-
Type: IEqualityComparer
Optional: True
Return Value
Type: Number (Integer)
The index in the sequence where the value first appears, or -1 if it is not in the sequence.