Add another object from a file to a Javascript Object Array

Question

im trying to build a cart functionality where the user would add a single product to an array of products or objects.

  var product = {
                    "Name": "Bike",
                    "Price": "900",
                    "idproduct": "1"
                };

now i would like to store this product in plain json text.Stringify function does just that.

var JsonString = JSON.stringify(product);

Now i would like to take that JsonString and convert it back to an object or object array like so.

var JsonObjectArray  = JSON.parse(JsonString);

Now im going to create a new exactly the same json object type but with diff values.

var product2 = {
                    "Name": "Car",
                    "Price": "12000",
                    "idproduct": "2"
                };

It seems that JsonObjectArray doesnt have the push method because it got deserialized into a single object namely product1, what should i do so i can add product2 to JsonObjectArray as another member of the aray like so and repeat the process multiple times.

JsonObjectArray.push(product2);

Isn't push for arrays? You've got objects here right?

scrowler
– scrowler

2014-06-25 23:01:47 +00:00
Commented Jun 25, 2014 at 23:01 — scrowler
– scrowler, Commented Jun 25, 2014 at 23:01

Andrew Clark · Accepted Answer · 2014-06-25 23:06:24Z

3

Starting with product as you have defined it, you will want to do one of the following:

Use JSON.stringify([product]) so that JsonString will be an JSON array:

var JsonString = JSON.stringify([product]);
var JsonObjectArray = JSON.parse(JsonString);

Leave JsonString as a single object, but create a one element array from the result of JSON.parse:
```
var JsonString = JSON.stringify(product);
var JsonObjectArray = [JSON.parse(JsonString)];
```

answered Jun 25, 2014 at 23:06

Andrew Clark

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2 Comments

SimpleJ Over a year ago

I would define a products variable for clarity, and so you have access to the array without having to stringify and parse it.

anubhava Over a year ago

May I request you to vote to undelete this old answer please

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