---
id: 660f207334fabaeac3269c38
title: Step 41
challengeType: 1
dashedName: step-41
---

# --description--

To manipulate the `result` string, you will use a different type of loop. Specifically, a `for...of` loop, which iterates over each item in an iterable object and temporarily assigns it to a variable.

The syntax for a `for...of` loop looks like:

```js
for (const value of iterable) {

}
```

Note that you can use `const` because the variable only exists for a single iteration, not during the entire loop.

Create a `for...of` loop to iterate through your `rows` array, assigning each value to a `row` variable.

# --hints--

You should use another `for` keyword.

```js
assert.lengthOf(__helpers.removeJSComments(code).match(/for/g), 2);
```

You should declare a `row` variable.

```js
assert.match(__helpers.removeJSComments(code), /\s+row\s+/);
```

You should use `const` to declare your `row` variable.

```js
assert.match(__helpers.removeJSComments(code), /const\s+row\s+/);
```

Your `for...of` loop should declare your `row` variable.

```js
assert.match(__helpers.removeJSComments(code), /for\s*\(\s*const\s+row\s+/);
```

Your `row` variable should be extracted from `rows` using the `of` keyword.

```js
assert.match(__helpers.removeJSComments(code), /for\s*\(\s*const\s+row\s+of\s+rows\s*\)/);
```

Your `for...of` loop body should be empty.

```js
assert.match(__helpers.removeJSComments(code), /for\s*\(\s*const\s+row\s+of\s+rows\s*\)\s*\{\s*\}/);
```

# --seed--

## --seed-contents--

```js
const character = "#";
const count = 8;
const rows = [];

for (let i = 0; i < count; i = i + 1) {
  rows.push(i);
}

let result = ""

--fcc-editable-region--

--fcc-editable-region--

console.log(result);
```