Task is done

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

@@ -0,0 +1,14 @@
+function checkType(primitive) {
+    if (isNaN(primitive))  {
+        return undefined;
+    }
+
+if (typeof primitive === "string"|"number") {
+   return typeof primitive 
+}
+}
+console.log(checkType("Den"))
+
+
+
+

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);
+return;
+}

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

@@ -0,0 +1,50 @@
+function isNumber(number) {
+  if (typeof number === 'number') {
+    return true;
+  }
+  return false;
+}
+
+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;
+}
+
+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;
+}
+
+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;
+}
+
+function arrayCheckParity(array) {
+  const result = [arrayCheckIsEven(array), arrayCheckIsOdd(array), arrayCheckIsZero(array)];
+
+  return result;
+}
+
+console.log(arrayCheckParity([1, 2, 3, 0]));

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

@@ -0,0 +1,12 @@
+function arrayCheck(array) {
+    for (let i = 0; i < array.length; i++) {
+        for (let j = i+1; j < array.length; j++) {
+if (array[i]===array[j]) {
+    return true;
+        }
+
+    }
+}
+return false;
+}
+console.log(arrayCheck([1,2,3,4,3]))