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Co-authored-by: Jessica Wilkins <67210629+jdwilkin4@users.noreply.github.com> Co-authored-by: Krzysztof G. <60067306+gikf@users.noreply.github.com>
105 lines
2.3 KiB
Markdown
105 lines
2.3 KiB
Markdown
---
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id: 65ae458e23954c3469e0c209
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title: Step 18
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challengeType: 0
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dashedName: step-18
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---
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# --description--
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In earlier projects you learned about the `setAttribute` method. Another way to update an attribute in JavaScript is to use the following syntax:
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```js
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el.attribute = value;
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```
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The property names for hyphenated HTML attribute values, such as `aria-label`, follow camel case, becoming `ariaLabel`.
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```js
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el.ariaLabel = "Aria Label Value";
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```
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Set the `aria-label` attribute for the `input` element to the same value as the `id` attribute.
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# --hints--
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You should have an `input.ariaLabel`.
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```js
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assert.match(code, /input\.ariaLabel\s*=/);
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```
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You should assign `letter + number` to `input.ariaLabel`.
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```js
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assert.match(code, /input\.ariaLabel\s*=\s*letter\s*\+\s*number/);
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```
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# --seed--
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## --seed-contents--
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```html
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1" />
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<link rel="stylesheet" href="./styles.css" />
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<title>Functional Programming Spreadsheet</title>
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</head>
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<body>
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<div id="container">
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<div></div>
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</div>
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<script src="./script.js"></script>
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</body>
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</html>
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```
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```css
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#container {
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display: grid;
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grid-template-columns: 50px repeat(10, 200px);
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grid-template-rows: repeat(11, 30px);
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}
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.label {
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background-color: lightgray;
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text-align: center;
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vertical-align: middle;
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line-height: 30px;
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}
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```
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```js
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const range = (start, end) => Array(end - start + 1).fill(start).map((element, index) => element + index);
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const charRange = (start, end) => range(start.charCodeAt(0), end.charCodeAt(0)).map(code => String.fromCharCode(code));
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window.onload = () => {
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const container = document.getElementById("container");
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const createLabel = (name) => {
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const label = document.createElement("div");
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label.className = "label";
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label.textContent = name;
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container.appendChild(label);
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}
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const letters = charRange("A", "J");
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letters.forEach(createLabel);
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range(1, 99).forEach(number => {
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createLabel(number);
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--fcc-editable-region--
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letters.forEach(letter => {
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const input = document.createElement("input");
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input.type = "text";
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input.id = letter + number;
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})
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--fcc-editable-region--
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})
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}
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```
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