diff --git a/1-js/01-a/1-a1/1-camelcase/solution/index.js b/1-js/01-a/1-a1/1-camelcase/solution/index.js
index a59eae9c..a4edefb4 100644
--- a/1-js/01-a/1-a1/1-camelcase/solution/index.js
+++ b/1-js/01-a/1-a1/1-camelcase/solution/index.js
@@ -1,2 +1 @@
-
-console.log("Hello");
\ No newline at end of file
+function camelize(str) {return str.split('-').map((word, index) => index == 0 ? word : word[0].toUpperCase() + word.slice(1)).join('');}
diff --git a/1-js/01-a/1-a1/1-camelcase/source/index.js b/1-js/01-a/1-a1/1-camelcase/source/index.js
index 69d903f5..c420d5da 100644
--- a/1-js/01-a/1-a1/1-camelcase/source/index.js
+++ b/1-js/01-a/1-a1/1-camelcase/source/index.js
@@ -1,3 +1,10 @@
 function camelize(str) {
-  /* your code */
-}
\ No newline at end of file
+  return str
+    .split('-') // разбивает 'my-long-word' на массив ['my', 'long', 'word']
+    .map(
+      // Переводит в верхний регистр первые буквы всех элементом массива за исключением первого
+      // превращает ['my', 'long', 'word'] в ['my', 'Long', 'Word']
+      (word, index) => index == 0 ? word : word[0].toUpperCase() + word.slice(1)
+    )
+    .join(''); // соединяет ['my', 'Long', 'Word'] в 'myLongWord'
+}
diff --git a/1-js/01-a/1-a1/1-camelcase/source/test.js b/1-js/01-a/1-a1/1-camelcase/source/test.js
index bcf5e955..dadbd1a4 100644
--- a/1-js/01-a/1-a1/1-camelcase/source/test.js
+++ b/1-js/01-a/1-a1/1-camelcase/source/test.js
@@ -1,19 +1,18 @@
 describe("camelize", function() {
 
   it("leaves an empty line as is", function() {
-    assert.equal(camelize(""), "");
+    expect(camelize("")).toEqual("");
   });
 
   it("turns background-color into backgroundColor", function() {
-    assert.equal(camelize("background-color"), "backgroundColor");
+    expect(camelize("background-color")).toEqual(["background", "color"])
   });
 
   it("turns list-style-image into listStyleImage", function() {
-    assert.equal(camelize("list-style-image"), "listStyleImage");
+    expect(camelize("list-style-image")).toEqual("listStyleImage");
   });
 
   it("turns -webkit-transition into WebkitTransition", function() {
-    assert.equal(camelize("-webkit-transition"), "WebkitTransition");
+    expect(camelize("-webkit-transition")).toEqual("WebkitTransition")
   });
-
-});
\ No newline at end of file
+});
diff --git a/1-js/02-b/1-b1/2-hoverintent/solution/hoverIntent.js b/1-js/02-b/1-b1/2-hoverintent/solution/hoverIntent.js
index 44bd2745..c9b307aa 100644
--- a/1-js/02-b/1-b1/2-hoverintent/solution/hoverIntent.js
+++ b/1-js/02-b/1-b1/2-hoverintent/solution/hoverIntent.js
@@ -1,4 +1,4 @@
-class HoverIntent {
+export default class HoverIntent {
 
   constructor({
     sensitivity = 0.1, // speed less than 0.1px/ms means "hovering over an element"
diff --git a/1-js/02-b/1-b1/2-hoverintent/source/hoverIntent.js b/1-js/02-b/1-b1/2-hoverintent/source/hoverIntent.js
index b73c6257..9fd479a4 100644
--- a/1-js/02-b/1-b1/2-hoverintent/source/hoverIntent.js
+++ b/1-js/02-b/1-b1/2-hoverintent/source/hoverIntent.js
@@ -1,6 +1,6 @@
 // Here's a brief sketch of the class
 // with things that you'll need anyway
-class HoverIntent {
+export default class HoverIntent {
 
   constructor({
     sensitivity = 0.1, // speed less than 0.1px/ms means "hovering over an element"
@@ -25,12 +25,9 @@ class HoverIntent {
     elem.addEventListener("mouseout", this.onMouseOut);
 
     // continue from this point
-
   }
 
   onMouseOver(event) {
-    console.error(console.log);
-    
     console.log("OVER", event);
     /* ... */
   }
diff --git a/1-js/02-b/1-b1/2-hoverintent/source/index.html b/1-js/02-b/1-b1/2-hoverintent/source/index.html
index c1d30b66..3ad401bb 100644
--- a/1-js/02-b/1-b1/2-hoverintent/source/index.html
+++ b/1-js/02-b/1-b1/2-hoverintent/source/index.html
@@ -1,5 +1,4 @@
 <link rel="stylesheet" href="style.css">
-<script src="hoverIntent.js"></script>
 
 <div id="elem" class="clock">
   <span class="hours">12</span> :
@@ -9,7 +8,9 @@
 
 <div id="tooltip" hidden>Tooltip</div>
 
-<script>
+<script type="module">
+  import HoverIntent from './hoverIntent.js';
+
   new HoverIntent({
     elem,
     over() {
@@ -21,4 +22,4 @@
       tooltip.hidden = true;
     }
   });
-</script>
\ No newline at end of file
+</script>
diff --git a/1-js/02-b/1-b1/2-hoverintent/source/index.spec.html b/1-js/02-b/1-b1/2-hoverintent/source/index.spec.html
new file mode 100755
index 00000000..7c0d3236
--- /dev/null
+++ b/1-js/02-b/1-b1/2-hoverintent/source/index.spec.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<link rel="stylesheet" href="style.css">
+<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/jasmine/3.5.0/jasmine.css">
+
+<!--<script src="https://cdnjs.cloudflare.com/ajax/libs/sinon.js/9.0.3/sinon.min.js"></script>-->
+<script src="https://cdnjs.cloudflare.com/ajax/libs/jasmine/3.5.0/jasmine.js"></script>
+<script src="https://cdnjs.cloudflare.com/ajax/libs/jasmine/3.5.0/jasmine-html.js"></script>
+<script src="https://cdnjs.cloudflare.com/ajax/libs/jasmine/3.5.0/boot.js"></script>
+
+<link rel="stylesheet" href="style.css">
+
+<script type="module" src="test.js"></script>
+
+<div id="elem" class="clock">
+    <span class="hours">12</span> :
+    <span class="minutes">30</span> :
+    <span class="seconds">00</span>
+</div>
+
+
+<div id="tooltip" hidden>Tooltip</div>
+
diff --git a/1-js/02-b/1-b1/2-hoverintent/source/test.js b/1-js/02-b/1-b1/2-hoverintent/source/test.js
index ebfc8625..aad3bca0 100644
--- a/1-js/02-b/1-b1/2-hoverintent/source/test.js
+++ b/1-js/02-b/1-b1/2-hoverintent/source/test.js
@@ -1,5 +1,6 @@
-describe("hoverIntent", function() {
+import HoverIntent from './hoverIntent.js';
 
+describe("hoverIntent", function() {
   function mouse(eventType, x, y, options) {
     let eventOptions = Object.assign({
       bubbles: true,
@@ -16,14 +17,15 @@ describe("hoverIntent", function() {
 
   let isOver;
   let hoverIntent;
+  let clock;
 
 
-  before(function() {
-    this.clock = sinon.useFakeTimers();
+  beforeAll(function() {
+    clock = jasmine.clock().install();
   });
 
-  after(function() {
-    this.clock.restore();
+  afterAll(function() {
+    clock.uninstall();
   });
 
 
@@ -49,13 +51,13 @@ describe("hoverIntent", function() {
 
   it("mouseover -> when the pointer just arrived, no tooltip", function() {
     mouse('mouseover', 10, 10);
-    assert.isFalse(isOver);
+    expect(isOver).toBeFalse();
   });
 
   it("mouseover -> after a delay, the tooltip shows up", function() {
     mouse('mouseover', 10, 10);
-    this.clock.tick(100);
-    assert.isTrue(isOver);
+    clock.tick(100);
+    expect(isOver).toBeTrue();
   });
 
   it("mouseover -> followed by fast mouseout leads doesn't show tooltip", function() {
@@ -64,8 +66,8 @@ describe("hoverIntent", function() {
       () => mouse('mouseout', 300, 300, { relatedTarget: document.body}),
       30
     );
-    this.clock.tick(100);
-    assert.isFalse(isOver);
+    clock.tick(100);
+    expect(isOver).toBeFalse();
   });
 
 
@@ -77,8 +79,8 @@ describe("hoverIntent", function() {
         i
       );
     }
-    this.clock.tick(200);
-    assert.isTrue(isOver);
+    clock.tick(200);
+    expect(isOver).toBeTrue();
   });
 
   it("mouseover -> fast move -> no tooltip", function() {
@@ -89,8 +91,8 @@ describe("hoverIntent", function() {
         i
       );
     }
-    this.clock.tick(200);
-    assert.isFalse(isOver);
+    clock.tick(200);
+    expect(isOver).toBeTrue();
   });
 
 });