freeCodeCamp/part-006.md at 4f1be63055a305fde01ec43be6b2e3bd4e38d880

Kris Koishigawa 4f1be63055 feat(learn): sync master and next-curriculum branches

2020-09-16 11:54:01 +05:30

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id, title, challengeType, isHidden

id	title	challengeType	isHidden
5d792533cc8b18b6c133edc7	Part 006	0	true

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