get array value by index angular code example
Example: return index of array with function in array angular
const a = [
{ firstName: "Adam", LastName: "Howard" },
{ firstName: "Ben", LastName: "Skeet" },
{ firstName: "Joseph", LastName: "Skeet" }];
let index = a.findIndex(x => x.LastName === "Skeet");
console.log(index);