freeCodeCamp/part-006.md at e2ae6303d587297199059dc0564b7fe12e7987fb

chore(learn): Remove remaining isHidden keys from frontmatter (English and Chinese challenges) (#39809 )

* fix: remove isHidden key from tool template

* fix: removed isHidden key from English challenges

* fix: remove isHidden key from Chinese challenges

2020-10-08 14:18:47 +02:00

1.6 KiB

Raw Blame History

id, title, challengeType

id	title	challengeType
5d792533cc8b18b6c133edc7	Part 6	0

Description

Anonymous functions are often passed as arguments to other functions, but what if you want to call one later? You can assign anonymous functions to variables and call them with the variable's name:

const fn = function(x) {
  return x;
}

fn();

Assign the anonymous function to the variable addVar.

Instructions

Tests

tests:
  - text: See description above for instructions.
    testString: assert(code.replace(/\s/g, "").includes("constaddVar=function(x,y){returnx+y"));

Challenge Seed

<script>

function add(x, y) {
  return x + y;
}

const infixToFunction = {};


</script>

Before Test

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Spreadsheet</title>
  <style>
    #container {
      display: grid;
      grid-template-columns: 50px repeat(10, 200px);
      grid-template-rows: repeat(11, 30px);
    }
    .label {
      background-color: lightgray;
      text-align: center;
      vertical-align: middle;
      line-height: 30px;
    }
  </style>
</head>
<body>
<div id="container">
  <div></div>
</div>

After Test

</body>
</html>

Solution

<script>
const addVar = function(x, y) {
  return x + y;
};

const infixToFunction = {};
</script>

1.6 KiB Raw Blame History