3.9 KiB
id, title, challengeType, dashedName
| id | title | challengeType | dashedName |
|---|---|---|---|
| 643715013330824ecaa70442 | Step 23 | 0 | step-23 |
--description--
Your next function will calculate the median value of an array of numbers. Start by declaring a median arrow function that takes a nums parameter.
In the function, declare a sorted variable and assign it the value of sorting a copy of the nums array.
You should use the slice() method for creating a shallow copy of the array.
--hints--
You should declare a median variable.
assert.match(code, /(?:let|const|var)\s+median/);
You should use const to declare your median variable.
assert.match(code, /const\s+median/);
Your median variable should be a function.
assert.isFunction(median);
Your median function should use arrow syntax.
assert.match(code, /const\s+median\s*=\s*\(?/);
Your median function should have a nums parameter.
assert.match(code, /const\s+median\s*=\s*(\(\s*nums\s*\)|nums)/);
Your median function should not use an implicit return.
assert.match(code, /const\s+median\s*=\s*(\(\s*nums\s*\)|nums)\s*=>\s*\{/);
Your median function should have a sorted variable.
assert.match(code, /const\s+median\s*=\s*(\(\s*nums\s*\)|nums)\s*=>\s*\{\s*(?:let|var|const)\s+sorted/);
You should use const to declare your sorted variable.
assert.match(code, /const\s+median\s*=\s*(\(\s*nums\s*\)|nums)\s*=>\s*\{\s*const\s+sorted/);
You should use .slice() to assign a copy of the nums array to sorted.
assert.match(code, /const\s+median\s*=\s*(\(\s*nums\s*\)|nums)\s*=>\s*\{\s*const\s+sorted\s*=\s*nums\.slice\(\s*\)/);
You should chain the .sort() method to your .slice() method.
assert.match(code, /const\s+median\s*=\s*(\(\s*nums\s*\)|nums)\s*=>\s*\{\s*const\s+sorted\s*=\s*nums\.slice\(\s*\)\.sort\(/);
You should pass a callback function to your sort method to accurately sort the numbers in ascending order. Use an implicit return for clarity.
assert.match(code, /const\s+median\s*=\s*(\(\s*nums\s*\)|nums)\s*=>\s*\{\s*const\s+sorted\s*=\s*nums\.slice\(\s*\)\.sort\(\s*\(\s*a\s*,\s*b\s*\)\s*=>\s*a\s*-\s*b\s*\)\s*\s*;?\s*\}/);
--seed--
--seed-contents--
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<link rel="stylesheet" href="./styles.css" />
<title>Functional Programming Spreadsheet</title>
</head>
<body>
<div id="container">
<div></div>
</div>
<script src="./script.js"></script>
</body>
</html>
#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;
}
const isEven = num => num % 2 === 0;
const sum = nums => nums.reduce((acc, el) => acc + el, 0);
const average = nums => sum(nums) / nums.length;
--fcc-editable-region--
--fcc-editable-region--
const range = (start, end) => Array(end - start + 1).fill(start).map((element, index) => element + index);
const charRange = (start, end) => range(start.charCodeAt(0), end.charCodeAt(0)).map(code => String.fromCharCode(code));
window.onload = () => {
const container = document.getElementById("container");
const createLabel = (name) => {
const label = document.createElement("div");
label.className = "label";
label.textContent = name;
container.appendChild(label);
}
const letters = charRange("A", "J");
letters.forEach(createLabel);
range(1, 99).forEach(number => {
createLabel(number);
letters.forEach(letter => {
const input = document.createElement("input");
input.type = "text";
input.id = letter + number;
input.ariaLabel = letter + number;
container.appendChild(input);
})
})
}