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question-1.js

@@ -6,3 +6,14 @@ const myTodo = [
   { id: 4, todo: "Wash dishes" },
 ];
 // เริ่มเขียนโค้ดตรงนี้
+
+//myTodo[3] = {id: 4, todo: "go gym"}
+//myTodo.pop()
+myTodo[3] = { id: 4, todo: "Go to the gym" }
+myTodo.push({ id: 5, todo: "Walk the dog" })
+myTodo.pop()
+
+console.log(myTodo);
+console.log("To-do id: 4, Go to the gym")
+
+

question-2.js

@@ -4,3 +4,23 @@ const inventory = [
   { name: "Banana", price: 10, quantity: 50 },
 ];
 // เริ่มเขียนโค้ดตรงนี้
+inventory[0].quantity = 200
+inventory.push({ name: "Orange", price: 20, quantity: 300 })
+
+const totalSum = inventory.reduce((acc,curr)=>{
+  console.log(acc);
+  console.log(curr);
+  return acc+(curr.price*curr.quantity)
+},0)
+console.log(totalSum);
+/*
+let applePrice = inventory[0].price * inventory[0].quantity
+let bananaPrice = inventory[1].price * inventory[1].quantity
+let orangePrice = inventory[2].price * inventory[2].quantity
+console.log(applePrice);
+console.log(bananaPrice);
+console.log(orangePrice);
+let totalSum = applePrice + bananaPrice + orangePrice
+*/
+console.log(`มูลค่ารวมของจำนวนสินค้าทั้งหมดในสต็อก ${totalSum} บาท`);
+

question-3.js

@@ -1,3 +1,18 @@
 // Question #3
 let userPassword = "";
 // เริ่มเขียนโค้ดตรงนี้
+function checkPasswordStrength(userPassword){
+    if(userPassword.length < 6){
+        return "Weak"
+    }else if(userPassword.length >=6 && userPassword.length < 10){
+        return "Medium"
+    }else if(userPassword.length >= 10) {
+        return "Strong"
+    }
+}
+
+
+
+console.log(checkPasswordStrength("swnalWadqQ"))
+console.log(checkPasswordStrength("TechUp"))
+console.log(checkPasswordStrength("abcde"))

question-4.js

@@ -1,7 +1,27 @@
 // Question #4
 const inventory = [
   { name: "Apple", price: 35, quantity: 100 },
-  { name: "Banana", price: 10, quantity: 50 },
+  { name: "Banana", price: 10, quantity: 40 },
   { name: "Orange", price: 30, quantity: 60 },
 ];
 // เริ่มเขียนโค้ดตรงนี้
+let minPrice = Infinity;
+let namelowest = ""
+
+for (let i=0;i<inventory.length;i++){
+  console.log(inventory[i].quantity)
+if(inventory[i].quantity < minPrice){
+  minPrice = inventory[i].quantity 
+  namelowest = inventory[i].name
+}
+
+}
+
+console.log(`สินค้าที่มีจำนวนต่ำที่สุดในคลังสินค้าคือ ${namelowest} ซึ่งมี ${minPrice} บาท`);
+
+/*if(minPrice >= inventory[i].price){
+  console.log(inventory[i].price)
+  console.log(inventory[i].quantity)
+}*/
+
+// return minPrice = inventory.price[i]

question-5.js

@@ -18,4 +18,98 @@ const products = [
 ];
 
 const promotionCode = "";
+
+function calculateTotalPrice(products, promotionCode) {
+  let totalPrice = 0;
+  for (let i = 0; i < products.length; i++) {
+    price = products[i].price * products[i].quantity;
+    console.log(price);
+    totalPrice = totalPrice + price;
+    console.log(totalPrice);
+  }
+
+  if (promotionCode === "SALE20") {
+    return totalPrice * 0.8;
+  } else if (promotionCode === "SALE50") {
+    return totalPrice * 0.5;
+  } else {
+    return totalPrice * 1;
+  }
+}
+console.log(calculateTotalPrice(products, ""));
+console.log(calculateTotalPrice(products,"SALE20"));
+console.log(calculateTotalPrice(products,"SALE50"));
+
+
+
+/*
+function code(acc,curr){
+  console.log(acc);
+  console.log(curr);
+  return (acc+curr.)
+}
+
+console.log(code);
+
+let result = products.reduce(code)
+console.log(result)
+
+*/
+
 // เริ่มเขียนโค้ดตรงนี้
+/*
+function calculateTotalPrice(product,promotionCode){
+  if(promotionCode === "SALE20"){
+    if(product === "เสื้อยืด"){
+      return (products[0].price*products[0].quantity)-(products[0].price*products[0].quantity)*0.2 
+    }else if(product === "กางเกงยีนส์"){
+      return (products[1].price*products[1].quantity)-(products[1].price*products[1].quantity)*0.2 
+    }else if(product === "เสื้อเชิ้ต"){
+      return (products[2].price*products[2].quantity)-(products[2].price*products[2].quantity)*0.2 
+    }
+
+  }else if(promotionCode === "SALE50"){
+    if(product === "เสื้อยืด"){
+      return (products[0].price*products[0].quantity)-(products[0].price*products[0].quantity)*0.5
+    }else if(product === "กางเกงยีนส์"){
+      return (products[1].price*products[1].quantity)-(products[1].price*products[1].quantity)*0.5 
+    }else if(product === "เสื้อเชิ้ต"){
+      return (products[2].price*products[2].quantity)-(products[2].price*products[2].quantity)*0.5 
+    }
+  }else if(promotionCode.includes("")){
+    if(product === "เสื้อยืด"){
+      return (products[0].price*products[0].quantity)
+    }else if(product === "กางเกงยีนส์"){
+      return (products[1].price*products[1].quantity)
+    }else if(product === "เสื้อเชิ้ต"){
+      return (products[2].price*products[2].quantity)
+    }
+  }
+}
+
+console.log(calculateTotalPrice("เสื้อยืด","SALE20"));
+console.log(calculateTotalPrice("เสื้อยืด","SALE50"));
+console.log(calculateTotalPrice("เสื้อยืด",""));
+console.log(calculateTotalPrice("เสื้อเชิ้ต","SALE20"));
+console.log(calculateTotalPrice("เสื้อเชิ้ต","SALE50"));
+console.log(calculateTotalPrice("เสื้อเชิ้ต",""));
+console.log(calculateTotalPrice("กางเกงยีนส์","SALE20"));
+console.log(calculateTotalPrice("กางเกงยีนส์","SALE50"));
+console.log(calculateTotalPrice("กางเกงยีนส์",""));
+
+
+*/
+
+/*
+console.log((products[0].price * products[0].quantity)*0.2)
+function calculateTotalPrice(products,promotionCode){
+  console.log((products.price * products.quantity)*0.2)
+  if(promotionCode === "SALE20"){
+    if(products === "เสื้อยืด"){
+      console.log(products.price * products.quantity)
+      promotionCode.inculdes("")
+    }
+  }
+}
+*/
+//console.log(calculateTotalPrice("เสื้อยืด","SALE20"))