JSFiddle - React, Tailwind, and code Playground

by docluv

JavaScript

Array.prototype.movieIndex = function(movie){
    
    var i = 0;
    
    for(i = 0; i < this.length; i++){
        
        if(this[i].id === movie.id){
            return i;
        }        
    }
        
    return -1;
};

var movies = [
    {id: 1,
     Name: "test 1"},
    {id: 2,
     Name: "test 2"},
    {id: 3,
     Name: "test 3"},
    {id: 4,
     Name: "test 4"},
    {id: 5,
     Name: "test 5"}
],
index = movies.movieIndex ({id: 5,
     Name: "test 5"});

//movies.splice(2, 1);

//alert(JSON.stringify(movies));

alert(index);