freeCodeCamp/part-006.md at d5000b5d0fd19312258c917298be486aed7beb16

Randell Dawson b9c9a95223 chore(learn): Renamed all project-based curriculum project step filenames to use 3-digit format of part-ddd.md (#39463 )

* fix: renamed basic html cat photo app steps

* fix: renamed css-variables project steps

* fix: renamed d3-dashboard filenames

* fix: renamed rpg-game filenames

* fix: renamed functional-progamming-spreadsheet filenames

* fix: renamed calorie-counter project filenames

2020-09-16 11:54:12 +05:30

1.6 KiB

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id, title, challengeType, isHidden

id	title	challengeType	isHidden
5d792533cc8b18b6c133edc7	Part 6	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