How to get values from javascript object?

Question

I have one javascript object. I want values like item_name, item_cost etc. from the object. How should I get it ?

This is my javascript object:

data: Array(3)
 0: {Item_name: "bourban-biscuits", Item_cost: 15, Item_quantity: 1, Total_cost: 15, Time: "3/17/2019, 4:26:05 PM"}
 1: {Item_name: "dark fantasy", Item_cost: 5, Item_quantity: 1, Total_cost: 5, Time: "3/17/2019, 4:26:20 PM"}
 2: {Item_name: ""}

• wentjun: Do you want to get all item_name from the array of objects? Or just one of them?
• Rhugveda Desai: I want all @wentjun
• Félix Paradis: You don't have one object, you have an array of objects. And a weird syntax... or is it just me?
• wentjun: @RhugvedaDesai Ok.. and what is your desired output? How would you want it to be like
• Rhugveda Desai: i want it in array format [item_name:biscuits, item_cost:5 ] @wentjun

Answer 1

If you want to get the array of only Item_names, you can use JavaScript's Array.map() operator:

const allNames = data.map(item => item.Item_name}

You can try running this to get a better idea:

const data = [{Item_name: "bourban-biscuits", Item_cost: 15, Item_quantity: 1, Total_cost: 15, Time: "3/17/2019, 4:26:05 PM"}, {Item_name: "dark fantasy", Item_cost: 5, Item_quantity: 1, Total_cost: 5, Time: "3/17/2019, 4:26:20 PM"}, {Item_name: ""}];
 const res = data.map(item => item.Item_name);
 console.log(res);

• wentjun: @RhugvedaDesai I don't really understand what do you want. Can you update the input, and expected output on your question?
• wentjun: And what exactly do you want from data[0]?
• Rhugveda Desai: i want { Item_name: "bourban-biscuits", Item_cost: 15, Item_quantity: 1, Total_cost: 15, Time: "3/17/2019, 4:26:05 PM"} @wentjun
• wentjun: Isn't that just data[0]? If you want to get that object, why not just use data[0]?
• Rhugveda Desai: data[0] is undefined @wentjun

Answer 2

Use map:

const names = array.map(({ Item_name }) => Item_name);