how to create array of objects in javascript code example

Example 1: list javascript

//Creating a list
var fruits = ["Apple", "Banana", "Cherry"];

//Creating an empty list
var books = [];

//Getting element of list
//Lists are ordered using indexes
//The first element in an list has an index of 0, 
//the second an index of 1,
//the third an index of 2,
//and so on.
console.log(fruits[0]) //This prints the first element 
//in the list fruits, which in this case is "Apple"

//Adding to lists
fruits.push("Orange") //This will add orange to the end of the list "fruits"
fruits[1]="Blueberry" //The second element will be changed to Blueberry

//Removing from lists
fruits.splice(0, 1) //This will remove the first element,
//in this case Apple, from the list
fruits.splice(0, 2) //Will remove first and second element
//Splice goes from index of first argument to index of second argument (excluding second argument)

Example 2: javascript array

//create an array like so:
var colors = ["red","blue","green"];

//you can loop through an array like this:
for (var i = 0; i < colors.length; i++) {
    console.log(colors[i]);
}

Example 3: array of objects javascript

var widgetTemplats = [
    {
        name: 'compass',
        LocX: 35,
        LocY: 312
    },
    {
        name: 'another',
        LocX: 52,
        LocY: 32
    }
]

Example 4: create array of objects javascript

let products = [
  {
    name: "chair",
    inventory: 5,
    unit_price: 45.99
  },
  {
    name: "table",
    inventory: 10,
    unit_price: 123.75
  },
  {
    name: "sofa",
    inventory: 2,
    unit_price: 399.50
  }
];
function listProducts(prods) {
  let product_names = [];
  for (let i=0; i<prods.length; i+=1) {
   product_names.push(prods[i].name);
  }
  return product_names;
}
console.log(listProducts(products));
function totalValue(prods) {
  let inventory_value = 0;
  for (let i=0; i<prods.length; i+=1) {
    inventory_value += prods[i].inventory * prods[i].unit_price;
  }
  return inventory_value;
}
console.log(totalValue(products));

Example 5: array javascript

special_dates = [];
special_dates.push(new Date('2021/02/12').getTime());
special_dates.push(new Date('2021/02/13').getTime());
special_dates.push(new Date('2021/02/14').getTime());

			
for (var i = 0; i < special_dates.length; i++) {
 console.log(special_dates[i]) ;
}

Example 6: how to make a array in javascript

//Im using a let type variable for the example because it's what i reccomend

let exampleArray = ["Example", "Lorem Ispum Dolor", "I think you've got it"]

//Here's how you select a single object in the list

exampleArray[1] 

/*In Javascript the arrays start counting at 0 which means i selected the 2nd
object in the list(Lorem Ispum Dolor) so if i wanna select the first array i
must type*/

exampleArray[0]

/*Now let's say you want to display it on the console, like let's say you are 
coding in Node.js and you wanna see the value of the array.
P.S: In the example im gonna show all the values of the array.*/

console.log(exampleArray[0, 1, 2]

Tags:

Php Example