const index = myArray.indexOf(key, 0);
if (index > -1) {
myArray.splice(index, 1);
}
var ar = [1, 2, 3, 4, 5, 6];
ar.pop(); // returns 6
console.log( ar ); // [1, 2, 3, 4, 5]
let foo_object // Item to remove
this.foo_objects = this.foo_objects.filter(obj => obj !== foo_object);