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groceriesApp.js
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groceriesApp.js
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import { initializeApp } from "https://www.gstatic.com/firebasejs/9.15.0/firebase-app.js"
import { getDatabase, ref, push, onValue, remove } from "https://www.gstatic.com/firebasejs/9.15.0/firebase-database.js"
const appSettings = {
databaseURL : "https://realtime-database-a2b16-default-rtdb.firebaseio.com/"
}
const app = initializeApp(appSettings)
const database = getDatabase(app)
const groceriesList = ref(database,"Grocery_Items")
const inputItem = document.getElementById("input-val")
const saveBtn = document.getElementById("save-btn")
const enteredValues= document.getElementById("item-values")
saveBtn.addEventListener("click",function(){
let iVal = inputItem.value
push(groceriesList, iVal)
clearInputBox()
})
onValue(groceriesList, function(snapshot){
if(snapshot.exists()){
let firebaseDb = Object.entries(snapshot.val())
clearUl()
for (let i = 0; i < firebaseDb.length; i++) {
let dbData = firebaseDb[i]
addGrocery(dbData)
}
}
else{
enteredValues.innerHTML= "No Items Entered"
}
})
function clearInputBox(){
inputItem.value=""
}
function clearUl(){
enteredValues.innerHTML=""
}
function addGrocery(groceryDb){
let groceryId = groceryDb[0]
let groceryItemName = groceryDb[1]
let itemName = document.createElement("li")
itemName.textContent = groceryItemName
itemName.addEventListener("click",function(){
let deleteIdLoc = ref(database, `Grocery_Items/${groceryId}`)
remove(deleteIdLoc)
})
enteredValues.append(itemName)
}