diff --git a/1-js/01-getting-started/index.md b/1-js/01-getting-started/index.md
@@ -1,3 +1,3 @@
# Введення

-Про мову JavaScript і робоче середовище, для розробки.
diff --git a/1-js/02-first-steps/04-variables/1-hello-variables/solution.md b/1-js/02-first-steps/04-variables/1-hello-variables/solution.md
@@ -1,12 +1,12 @@
-In the code below, each line corresponds to the item in the task list.

```js run
-let admin, name; // can declare two variables at once

-name = "John";

admin = name;

-alert( admin ); // "John"
```

diff --git a/1-js/02-first-steps/04-variables/1-hello-variables/task.md b/1-js/02-first-steps/04-variables/1-hello-variables/task.md
@@ -2,9 +2,9 @@ importance: 2

---

-# Working with variables

-1. Declare two variables: `admin` and `name`.
-2. Assign the value `"John"` to `name`.
-3. Copy the value from `name` to `admin`.
-4. Show the value of `admin` using `alert` (must output "John").
diff --git a/1-js/02-first-steps/04-variables/2-declare-variables/solution.md b/1-js/02-first-steps/04-variables/2-declare-variables/solution.md
@@ -1,21 +1,21 @@
-First, the variable for the name of our planet.

-That's simple:

```js
-let ourPlanetName = "Earth";
```

-Note, we could use a shorter name `planet`, but it might be not obvious what planet it refers to. It's nice to be more verbose. At least until the variable isNotTooLong.

-Second, the name of the current visitor:

```js
-let currentUserName = "John";
```

-Again, we could shorten that to `userName` if we know for sure that the user is current.

-Modern editors and autocomplete make long variable names easy to write. Don't save on them. A name with 3 words in it is fine.

-And if your editor does not have proper autocompletion, get [a new one](/code-editors).
diff --git a/1-js/02-first-steps/04-variables/2-declare-variables/task.md b/1-js/02-first-steps/04-variables/2-declare-variables/task.md
@@ -2,7 +2,7 @@ importance: 3

---

-# Giving the right name

-1. Create a variable with the name of our planet. How would you name such a variable?
-2. Create a variable to store the name of a current visitor to a website. How would you name that variable?
diff --git a/1-js/02-first-steps/04-variables/3-uppercast-constant/solution.md b/1-js/02-first-steps/04-variables/3-uppercast-constant/solution.md
@@ -1,5 +1,5 @@
-We generally use upper case for constants that are "hard-coded". Or, in other words, when the value is known prior to execution and directly written into the code.

-In this code, `birthday` is exactly like that. So we could use the upper case for it.

-In contrast, `age` is evaluated in run-time. Today we have one age, a year after we'll have another one. It is constant in a sense that it does not change through the code execution. But it is a bit "less of a constant" than `birthday`, it is calculated, so we should keep the lower case for it.
diff --git a/1-js/02-first-steps/04-variables/3-uppercast-constant/task.md b/1-js/02-first-steps/04-variables/3-uppercast-constant/task.md
@@ -2,23 +2,23 @@ importance: 4

---

-# Uppercase const?

-Examine the following code:

```js
const birthday = '18.04.1982';

const age = someCode(birthday);
```

-Here we have a constant `birthday` date and the `age` is calculated from `birthday` with the help of some code (it is not provided for shortness, and because details don't matter here).

-Would it be right to use upper case for `birthday`? For `age`? Or even for both?

```js
-const BIRTHDAY = '18.04.1982'; // make uppercase?

-const AGE = someCode(BIRTHDAY); // make uppercase?
```
Original file line number	Diff line number	Diff line change
		@@ -1,3 +1,3 @@
		# Введення

		Про мову JavaScript і робоче середовище, для розробки.