Data and functions 1

data-and-functions-1/src/functions/getActiveUsers.js

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+const getActiveUsers = (data) => {
+  if (data == null || data.users == null) {
+    return null
+  } else {
+    const activeUsers = []
+    for (let i = 0; i < data.users.length; i++) {
+      const currentUser = data.users[i]
+      if (currentUser.accountActive === true) {
+        activeUsers.push(currentUser)
+      }
+    }
+    return activeUsers
+  }
+}
+
+export default getActiveUsers

data-and-functions-1/src/functions/getMostExpensiveProduct.js

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+const getMostExpensiveProduct = (data) => {
+  if (data == null || data.products == null) {
+    return null
+  }
+
+  let mostExpensive = data.products[0]
+  for (let i = 1; i < data.products.length; i++) {
+    const currentProduct = data.products[i]
+    if (mostExpensive.price < currentProduct.price) {
+      mostExpensive = currentProduct
+    }
+  }
+  return mostExpensive
+}
+
+export default getMostExpensiveProduct

data-and-functions-1/src/functions/getOrderInfo.js

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+import getProductById from './getProductById'
+import getUserById from './getUserById'
+
+const getOrderInfo = (DATA) => {
+  if (DATA == null || DATA.orders == null) {
+    return null
+  }
+  const orderInfoArr = []
+
+  for (let i = 0; i < DATA.orders.length; i++) {
+    const currentOrder = DATA.orders[i]
+
+    const orderId = currentOrder.id
+    const userName = getUserById(DATA, currentOrder.userId).name
+    const price = getProductById(DATA, currentOrder.productId).price
+    const orderInfo = {
+      orderId: orderId,
+      userName: userName,
+      price: price
+    }
+    orderInfoArr.push(orderInfo)
+  }
+  return orderInfoArr
+}
+
+export default getOrderInfo

data-and-functions-1/src/functions/getProductById.js

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+const getProductById = (data, id) => {
+  if (data == null || data.products == null || id == null) {
+    return null
+  }else{
+    return data.products.find((p) => {
+      return p.id === id
+    })
+  }
+}
+
+export default getProductById

data-and-functions-1/src/functions/getUserById.js

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+const getUserById = (data, id) => {
+  if (data == null || id == null || data.users == null) {
+    return null
+  }else{
+    return data.users.find((u) => u.id === id)
+  }
+}
+
+export default getUserById