indexOf method
override
The first index of element in this list.
Searches the list from index start to the end of the list.
The first time an object o is encountered so that o == element,
the index of o is returned.
final notes = <String>['do', 're', 'mi', 're'];
print(notes.indexOf('re')); // 1
final indexWithStart = notes.indexOf('re', 2); // 3
Returns -1 if element is not found.
final notes = <String>['do', 're', 'mi', 're'];
final index = notes.indexOf('fa'); // -1
Implementation
int indexOf(Object? element, [int start = 0]) {
if (start < 0) start = 0;
for (int i = start; i < this.length; i++) {
if (this[i] == element) return i;
}
return -1;
}