How can I add total price from json in script task

FAQ JavaScript
1

I am trying to add total itemPrice in script task using javascript

Json looks like

“Items”: [
{
“itemName”: “banana”,
“itemPrice”: 15
},
{
“itemName”: “Mango”,
“itemPrice”: 25
},
{
“itemName”: “tea”,
“itemPrice”: 8.7
}
]