---
id: 69373793f5a867f769cde135
title: "Challenge 150: Markdown Unordered List Parser"
challengeType: 28
dashedName: challenge-150
---

# --description--

Given the string of a valid unordered list in Markdown, return the equivalent HTML string.

An unordered list consists of one or more list items. A valid list item appears on its own line and:

- Starts with a dash (`"-"`), followed by
- At least one space, and then
- The list item text.

The list is given as a single string with new lines separated by the newline character (`"\n"`). Do not include the newline characters in the item text.

Wrap each list item in HTML `li` tags, and the whole list of items in `ul` tags.

For example, given `"- Item A\n- Item B"`, return `"<ul><li>Item A</li><li>Item B</li></ul>"`.

Note: The console may not display HTML tags in strings when logging messages. Check the browser console to see logs with tags included.

# --hints--

`parseUnorderedList("- Item A\n- Item B")` should return `"<ul><li>Item A</li><li>Item B</li></ul>"`.

```js
assert.equal(parseUnorderedList("- Item A\n- Item B"), "<ul><li>Item A</li><li>Item B</li></ul>");
```

`parseUnorderedList("-  JavaScript\n-  Python")` should return `"<ul><li>JavaScript</li><li>Python</li></ul>"`.

```js
assert.equal(parseUnorderedList("-  JavaScript\n-  Python"), "<ul><li>JavaScript</li><li>Python</li></ul>");
```

`parseUnorderedList("- 2 C Flour\n- 1/2 C Sugar\n- 1 Tsp Vanilla")` should return `"<ul><li>2 C Flour</li><li>1/2 C Sugar</li><li>1 Tsp Vanilla</li></ul>"`.

```js
assert.equal(parseUnorderedList("- 2 C Flour\n- 1/2 C Sugar\n- 1 Tsp Vanilla"), "<ul><li>2 C Flour</li><li>1/2 C Sugar</li><li>1 Tsp Vanilla</li></ul>");
```

`parseUnorderedList("- A-1\n- A-2\n- B-1")` should return `"<ul><li>A-1</li><li>A-2</li><li>B-1</li></ul>"`.

```js
assert.equal(parseUnorderedList("- A-1\n- A-2\n- B-1"), "<ul><li>A-1</li><li>A-2</li><li>B-1</li></ul>");
```

# --seed--

## --seed-contents--

```js
function parseUnorderedList(markdown) {

  return markdown;
}
```

# --solutions--

```js
function parseUnorderedList(markdown) {
  const lines = markdown.split("\n");
  const listItems = [];
  
  for (let line of lines) {
    listItems.push(`<li>${line.slice(1).trim()}</li>`);
  }
  
  return `<ul>${listItems.join("")}</ul>`;
}
```