Shopify savings calculator

savings_calculator.js

(function cartCheck() {
    let fetchIt = fetch(`${window.location.origin}/cart.js`)
        .then(response => response.json())
        .then((data) => {
            const dataMap = data.items.map((d) => {
                let handleURL = `${window.location.origin}/products/${d.handle}.js`
                return handleURL
            })
            for (let data of dataMap) {
                fetch(data)
                    .then(response => response)
                    .then(data => data.json())
                    .then((data) => {
                        let compare = data.compare_at_price / 100
                        let price = data.price / 100
                        if (compare != null && compare > 0) {
                            // Remove minus sign
                            let savings = Math.abs(price - compare)
                            let finalText = `You saved $${savings.toFixed(2)}!`
                            // Change this to suit your store
                            let finalSavings = document.querySelector('.drawer__footer')
                            let newDivGet = document.querySelector('.compare__price')
                            if (newDivGet == null) {
                                let newDiv = document.createElement('div')
                                newDiv.classList.add('compare__price')
                                let newP = document.createElement('p')
                                newP.innerHTML = `${finalText}`
                                newDiv.appendChild(newP)
                                newDiv.style = "display: flex; justify-content: center;"
                                finalSavings.appendChild(newDiv)
                            }
                        }
                    })
                    .catch((e) => {
                        console.log(e)
                    })
            }
        })
        .catch((e) => {
            console.log(e)
        })
})();