Functions, Arrays, DOM

1-module/1-task/index.js

@@ -8,3 +8,4 @@ function factorial(n) {
   }
   return result;
 }
+

3-module/1-task/index.js

@@ -1,3 +1,3 @@
 function namify(users) {
-  // ваш код...
+  return users.map((user) => user.name);
 }

3-module/2-task/index.js

@@ -1,3 +1,4 @@
 function filterRange(arr, a, b) {
-  // ваш код...
+  return arr.filter((x) => x >= a && x <= b);
 }
+

3-module/3-task/index.js

@@ -1,3 +1,3 @@
 function camelize(str) {
-  // ваш код...
+  return str.split('-').map((substr, index) => index > 0 ? substr[0].toUpperCase() + substr.slice(1) : substr).join('');
 }

3-module/4-task/index.js

@@ -1,3 +1,6 @@
 function showSalary(users, age) {
-  // ваш код...
+  return users
+    .filter(user => user.age <= age)
+    .map(user => `${user.name}, ${user.balance}`)
+    .join('\n');
 }

3-module/5-task/index.js

@@ -1,3 +1,12 @@
 function getMinMax(str) {
-  // ваш код...
+  let result = str.split(' ')
+    .filter((substr) => {
+      if (Number(substr)) {
+        return substr;
+      }
+    })
+    .map((substr) => Number(substr))
+    .sort((a, b) => a - b);
+  return {min: result[0], max: result[result.length - 1]};
 }
+

4-module/1-task/index.js

@@ -1,3 +1,12 @@
 function makeFriendsList(friends) {
-  // ваш код...
+  let ul = document.createElement("ul");
+  for (let friend of friends) {
+    // Create a li element for each friend
+    let li = document.createElement("li");
+    // Set the text content of the li element to the friend's name
+    li.textContent = friend.firstName + " " + friend.lastName;
+    // Append the li element to the ul element
+    ul.appendChild(li);
+  }
+  return ul;
 }

4-module/2-task/index.js

@@ -1,3 +1,8 @@
+function checkEquality(str) {
+  let arr = str.split(':');
+  return arr[0] === arr[1];
+}
+
 function makeDiagonalRed(table) {
-  // ваш код...
+  Array.from(table.querySelectorAll("td")).forEach((node) => checkEquality(node.innerText) ? node.style.backgroundColor = "red" : {});
 }

4-module/3-task/index.js

@@ -1,3 +1,22 @@
+function modifyElement(trNode, tdNode) {
+  if (tdNode.getAttribute('data-available') === "true") {
+    trNode.classList.add("available");
+  } else if (tdNode.getAttribute('data-available') === "false") {
+    trNode.classList.add("unavailable");
+  } else {
+    trNode.hidden = true;
+  }
+  if (tdNode.innerText === "f") {
+    trNode.classList.add("female");
+  } else {
+    trNode.classList.add("male");
+  }
+  if (Number(tdNode.innerText) < 18) {
+    trNode.style = "text-decoration: line-through";
+  }
+}
+
+
 function highlight(table) {
-  // ваш код...
+  Array.from(table.querySelectorAll("tr")).forEach((trNode) => Array.from(trNode.children).forEach(tdNode => modifyElement(trNode, tdNode)));
 }