Is it possible for me to include detailed information to a particular attribute of an object?

Although the code below is incorrect, it reflects my intention. Can this be achieved? I am looking to update the original array so that all orderno values are formatted as 000.0.000.00000.0.

let cars= [ 
  {orderno: "5766302385925", make: "Alfa", dealership: "NA"},
  {orderno: "4663873261390", make: "Merc", dealership: "NA"},
  {orderno: "8458821291579" , make: "BMW", dealership: "EU"},
  {orderno: "3376768687480", make: "Ford", dealership: "NA"},
  {orderno: "5186132840921", make: "Buick", dealership: "EU"},
];

function addOrderDot() {
    for (var i=0; i<cars.length; i++) {
    cars.orderno[i].splice(2,0,'.')
    cars.orderno[i].splice(3,0,'.')
    cars.orderno[i].splice(6,0,'.')
    cars.orderno[i].splice(11,0,'.')
    } 
}

Desired output array after applying the function:

let cars= [ 
  {orderno: "576.6.302.38592.5", make: "Alfa", dealership: "NA"},
  {orderno: "466.3.873.26139.0", make: "Merc", dealership: "NA"},
  {orderno: "845.8.821.29157.9" , make: "BMW", dealership: "EU"},
  {orderno: "337.6.768.68748.0", make: "Ford", dealership: "NA"},
  {orderno: "518.6.132.84092.1", make: "Buick", dealership: "EU"},
];
javascriptarraysfunctionobject

Answer №1

Utilizing the map() and slice() functions can be a viable solution.

let vehicles= [ 
  {orderno: "5766302385925", make: "Alfa", dealership: "NA"},
  {orderno: "4663873261390", make: "Merc", dealership: "NA"},
  {orderno: "8458821291579", make: "BMW", dealership: "EU"},
  {orderno: "3376768687480", make: "Ford", dealership: "NA"},
  {orderno: "5186132840921", make: "Buick", dealership: "EU"},
];

function addPeriodsToOrderNo(vehicles) {
  return vehicles.map(vehicle => ({
    ...vehicle,
    orderno: vehicle.orderno.slice(0, 3) + '.' +
      vehicle.orderno.slice(3, 4) + '.' +
      vehicle.orderno.slice(4, 7) + '.' +
      vehicle.orderno.slice(7, 12) + '.' +
      vehicle.orderno.slice(12, 13)
  }));
}

let modifiedVehicles = addPeriodsToOrderNo(vehicles);

console.log(modifiedVehicles);

Answer №2

In order to make modifications directly within your array, follow these steps:

  1. Go through each element of the array
  2. Retrieve the value of the orderno property for that element
  3. Make the necessary modifications to this value
  4. Update the orderno property for that element back in the array

(1) Go through each element of the array

There are several ways to accomplish this, with one common method being to use a simple for loop as demonstrated below

 for (let i=0; i<cars.length; i++) {
 }

(2) Access the element within the array using cars[i], then retrieve the orderno property by accessing cars[i].orderno

 let orn = cars[i].orderno;

(3) Perform necessary modifications to the value

orn = orn.slice(0,3)+'.'+orn.slice(3,4);

(4) Update the array with the new modified value

cars[i].orderno = orn;

Combining all these steps:

 for (var i=0; i<cars.length; i++) {
    let orn = cars[i].orderno;
    orn = orn.slice(0,2)+'.'+orn.slice(2,4) ;
    cars[i].orderno = orn;
 }

Answer №3

An elegant solution can be achieved by utilizing a straightforward regular expression to substitute each string:

let cars= [ 
  {orderno: "5766302385925", make: "Alfa", dealership: "NA"},
  {orderno: "4663873261390", make: "Merc", dealership: "NA"},
  {orderno: "8458821291579" , make: "BMW", dealership: "EU"},
  {orderno: "3376768687480", make: "Ford", dealership: "NA"},
  {orderno: "5186132840921", make: "Buick", dealership: "EU"},
];

function addOrderDot() {
    cars.forEach(car => {
       car.orderno = car.orderno.replace(
      /^(.{3})(.{1})(.{3})(.{5})(.{1})$/,
      `$1.$2.$3.$4.$5`
    )
    })
}

The process involves iterating through the elements in the cars array and segmenting the orderno digits into 5 groups.

In the regular expression (^) signifies the start of the string, () defines logical groupings for later use as variables, .{number} represents a specific number of characters, and $ marks the end of the string. Each part of the regexp separates a distinct set of characters that are replaced with the grouped sections.

While regular expressions can initially appear complex, they serve as valuable tools for handling strings with recognizable patterns.

Answer №4

To begin with, you have the option to utilize map in order to transform an array:

let vehicles= [ 
  {orderno: "5766302385925", make: "Alfa", dealership: "NA"},
  {orderno: "4663873261390", make: "Merc", dealership: "NA"},
  {orderno: "8458821291579" , make: "BMW", dealership: "EU"},
  {orderno: "3376768687480", make: "Ford", dealership: "NA"},
  {orderno: "5186132840921", make: "Buick", dealership: "EU"},
];

console.log(vehicles.map(vehicle => {vehicle.orderno = "updated"; return vehicle}))

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