how can i store objects in a global array or any data Structure so that i can use that array like a database in my program

Question

what i exactly want is to store some Data Locally in a Array of Objects in my Program so that i can use that Data all day long and by the End of the Day i want to delete it without the use of Databases. I have a Json data and i want to Store them as object with a universally unique identifier (uuid) in an Array or data Structure so that i can use it in my Program, i cant use a Database, i think i must find a way to store the Objects in a global Array but i want to append new Objects to that Array without deleting the Objects that are already stored in that Array. I'm using Node js, I'm pretty sure there is a way to do this but i dont know how. I ll apreciate some Help

I tried to Declare classes with Array Property and Store my Data in that Array but when i reexecute the code, the data is deleted and i lost my Data, but i must find a way like a Local Storage in a global Array where my Data will be safe if I append some Objects to that Array and I'm Ok if that Data will be deleted at the End of the Day if I turn off my Laptop for example or if I end the Program and close Vs Code. I tried also to declare it in extra files and call it from the main program but nothing worked

// this is a library to create a universilly unique id const uuid = require("uuid/v1");

var todo_list = { todos: [],

register : function(todo) {
    this.todos.push({
        id : uuid(),
        todo: todo
    })},

size : function() {return this.todos.length },
display : function() {
    this.todos.forEach(t=> {
        console.log(t);
    });
} 

}

function createtodo(id, name, region) {
    return {
        id : id,
        name : name, 
        region : region
    };
}

todo_list.register(createtodo(2,"test6", "leipzig"));
console.log(todo_list.size());
console.log(todo_list.display());

i expect that when a register a new todo that it ll be appended in the todos Array Property and not replace what actually inside the todos in the moment. If i call the function register 5 times then 5 objects will be stored in my todos Array but if I Comment the code of register function calling and execute the Program another time, then my data will be lost and the result of the size function will be 0 or undifined. the result that i want is that my data will be stored in an extra global Array where the data will not be lost even after i change the code but i understand that the data will be lost if i close the program somehow

You have to explicitly save the data somewhere and retrieve it when the script runs, else it won't persist — CertainPerformance, Mar 24 '19 at 22:04
Ok but how do i do that? i created a list in another file and require it in the current file but that didnt worked either because the data will be replaced and not appended when i re execute the program — Nidhal Baccouri, Mar 25 '19 at 08:07

how can i store objects in a global array or any data Structure so that i can use that array like a database in my program

0 Answers0