js index to index code example
Example 1: javasript array indexof
var array = [2, 9, 9];
array.indexOf(2); // 0
array.indexOf(7); // -1
array.indexOf(9, 2); // 2
array.indexOf(2, -1); // -1
array.indexOf(2, -3); // 0
Example 2: js index to index
let array = [5, "Foo", 3, "Bar"];
array.slice(2);
// Output = [3, "Bar"]
let string = "Volvo Cars";
string.slice(2);
// Output = "lvo cars"