Task is done

src/ex2_js-basics-part2/task-01.js

@@ -0,0 +1,10 @@
+function checkType(primitive) {
+  if (isNaN(primitive)) {
+    return undefined;
+  }
+
+  if (typeof primitive === 'string' | 'number') {
+    return typeof primitive;
+  }
+}
+module.exports = checkType;

src/ex2_js-basics-part2/task-02.js

@@ -0,0 +1,7 @@
+function arrayCheck(array) {
+  for (let i = 0; i < array.length; i++) {
+    console.log(i);
+  }
+  console.log(array.length);
+}
+module.exports = arrayCheck;

src/ex2_js-basics-part2/task-03.js

@@ -0,0 +1,49 @@
+function isNumber(number) {
+  if (typeof number === 'number') {
+    return true;
+  }
+  return false;
+}
+module.exports = isNumber;
+function arrayCheckIsEven(array) {
+  let counter = 0;
+  for (let i = 0; i < array.length; i++) {
+    if (isNumber(array[i]) && array[i] !== 0) {
+      if (array[i] % 2 === 0) {
+        counter += 1;
+      }
+    }
+  }
+  return counter;
+}
+module.exports = arrayCheckIsEven;
+function arrayCheckIsOdd(array) {
+  let counter = 0;
+  for (let i = 0; i < array.length; i++) {
+    if (isNumber(array[i]) && array[i] !== 0) {
+      if (array[i] % 2 === 1 || array[i] === 1) {
+        counter += 1;
+      }
+    }
+  }
+  return counter;
+}
+module.exports = arrayCheckIsOdd;
+function arrayCheckIsZero(array) {
+  let counter = 0;
+  for (let i = 0; i < array.length; i++) {
+    if (isNumber(array[i])) {
+      if (array[i] === 0) {
+        counter += 1;
+      }
+    }
+  }
+  return counter;
+}
+module.exports = arrayCheckIsZero;
+function arrayCheckParity(array) {
+  const result = [arrayCheckIsEven(array), arrayCheckIsOdd(array), arrayCheckIsZero(array)];
+
+  return result;
+}
+module.exports = arrayCheckParity;

src/ex2_js-basics-part2/task-04.js

@@ -0,0 +1,13 @@
+function arrayCheckSimilar(array) {
+    for (let i = 0; i < array.length; i++) 
+    if (typeof array[i]==='number') {
+        for (let j = i+1; j < array.length; j++) {
+if (array[i]===array[j]) {
+    return true;
+        }
+
+    }
+}
+return false;
+}
+module.exports = arrayCheckSimilar;

src/ex2_js-basics-part2/task-05.js

@@ -0,0 +1,9 @@
+function arrayFindkMax(array) {
+  let max = 0;
+  const a = array.length;
+  for (let i = 0; i < a; i++) {
+    if (array[i] > max) { max = array[i]; }
+  }
+  return max;
+}
+module.exports = arrayFindkMax;