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fix(curriculum): Decimal to Binary Converter - combine step 103 and 104 (#57369)

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This commit is contained in:
Duong The Pham
2024-12-09 23:57:08 +07:00
committed by GitHub
parent ea15720fe3
commit 6541547468
7 changed files with 44 additions and 302 deletions
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14
curriculum/challenges/_meta/learn-recursion-by-building-a-decimal-to-binary-converter/meta.json
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@@ -417,28 +417,24 @@
"title": "Step 102"
},
{
"id": "6464ad3c9b2e6cf58224cfa9",
"id": "674dd79dcfa5690e16e59775",
"title": "Step 103"
},
{
"id": "6464b1384318a5087190950a",
"id": "6464b25851863b0a119eb7b1",
"title": "Step 104"
},
{
"id": "6464b25851863b0a119eb7b1",
"id": "6464b3adeee9310bd37ff636",
"title": "Step 105"
},
{
"id": "6464b3adeee9310bd37ff636",
"id": "6464b8ccb1a5d612c2f857d1",
"title": "Step 106"
},
{
"id": "6464b8ccb1a5d612c2f857d1",
"title": "Step 107"
},
{
"id": "6464c6d6698a8027f8c9d6be",
"title": "Step 108"
"title": "Step 107"
}
],
"blockLayout": "legacy-challenge-grid"

282
curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/learn-recursion-by-building-a-decimal-to-binary-converter/6464b1384318a5087190950a.md
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@@ -1,282 +0,0 @@
---
id: 6464b1384318a5087190950a
title: Step 104
challengeType: 0
dashedName: step-104
---
# --description--
Now that you've targeted the correct element, you can update its text after the delay you specified earlier.
Using the `.getElementById()` method, set the `textContent` property of the targeted element equal to the `msg` property of the current object.
# --hints--
You should chain `.textContent` to the `.getElementById()` method.
```js
assert.match(
String(showAnimation),
/setTimeout\s*\([\s\S]+document\.getElementById\s*\(\s*obj\.inputVal\s*\)\s*\.\s*textContent/
);
```
You should set the `textContent` property of the targeted element equal to the `msg` property of the current object.
```js
assert.match(
String(showAnimation),
/setTimeout\s*\([\s\S]+document\.getElementById\s*\(\s*obj\.inputVal\s*\)\s*\.\s*textContent\s*=\s*obj\.msg|setTimeout\s*\([\s\S]+document\.getElementById\s*\(\s*obj\.inputVal\s*\)\s*\.\s*textContent\s*=\s*obj\s*\[\s*('|"|`)\s*msg\s*\1\s*\]/
);
```
# --seed--
## --seed-contents--
```html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Decimal to Binary Converter</title>
<link rel="stylesheet" href="styles.css" />
</head>
<body>
<h1>
Decimal to Binary <br />
Converter
</h1>
<section class="input-container">
<label for="number-input">Enter a decimal number:</label>
<input
value=""
type="number"
name="decimal number input"
id="number-input"
class="number-input"
/>
<button class="convert-btn" id="convert-btn">Convert</button>
</section>
<section class="output-container">
<output id="result" for="number-input"></output>
<h2>Call stack</h2>
<div id="animation-container"></div>
</section>
<script src="script.js"></script>
</body>
</html>
```
```css
*,
*::before,
*::after {
box-sizing: border-box;
margin: 0;
padding: 0;
}
:root {
--light-grey: #f5f6f7;
--dark-blue: #1b1b32;
--orange: #f1be32;
}
body {
display: flex;
flex-direction: column;
align-items: center;
font-family: Menlo, Consolas, Monaco, Liberation Mono, Lucida Console,
monospace;
font-size: 1.125rem;
color: var(--light-grey);
background-color: var(--dark-blue);
padding: 0 4px;
}
h1 {
font-size: 2.125rem;
text-align: center;
margin: 20px 0;
}
h2 {
font-size: 1.5rem;
text-align: center;
margin: 20px 0;
}
.input-container {
display: flex;
flex-direction: column;
gap: 10px;
justify-content: center;
align-items: center;
width: clamp(320px, 50vw, 460px);
margin: 10px auto;
}
.input-container label {
white-space: nowrap;
word-spacing: -6px;
}
.convert-btn {
font-size: inherit;
font-family: inherit;
background-color: var(--orange);
width: 100%;
height: 2rem;
padding: 0 6px;
border: none;
border-radius: 2px;
cursor: pointer;
}
.number-input {
font-size: inherit;
padding: 0.3rem;
width: 100%;
}
.output-container {
margin-inline: auto;
width: clamp(320px, 50vw, 460px);
}
#result {
display: flex;
align-items: center;
justify-content: center;
font-size: 2rem;
text-align: center;
min-height: 80px;
margin-block-start: 20px;
padding: 15px;
border: 2px solid var(--orange);
border-radius: 2px;
}
#animation-container {
display: flex;
flex-direction: column-reverse;
justify-content: end;
gap: 1rem;
margin-block-end: 1rem;
min-height: 40vh;
border: 2px dashed var(--orange);
padding: 1rem;
}
.animation-frame {
font-family: -apple-system, BlinkMacSystemFont, avenir next, avenir, segoe ui,
helvetica neue, helvetica, Cantarell, Ubuntu, roboto, noto, arial,
sans-serif;
padding: 15px 10px;
border: 5px solid var(--orange);
font-size: 1.2rem;
text-align: center;
}
@media screen and (min-width: 36em) {
body {
font-size: 1rem;
}
.input-container {
flex-direction: row;
width: unset;
}
.number-input {
width: unset;
}
}
```
```js
const numberInput = document.getElementById("number-input");
const convertBtn = document.getElementById("convert-btn");
const result = document.getElementById("result");
const animationContainer = document.getElementById("animation-container");
const animationData = [
{
inputVal: 5,
addElDelay: 1000,
msg: 'decimalToBinary(5) returns "10" + 1 (5 % 2). Then it pops off the stack.',
showMsgDelay: 15000,
removeElDelay: 20000,
},
{
inputVal: 2,
addElDelay: 1500,
msg: 'decimalToBinary(2) returns "1" + 0 (2 % 2) and gives that value to the stack below. Then it pops off the stack.',
showMsgDelay: 10000,
removeElDelay: 15000,
},
{
inputVal: 1,
addElDelay: 2000,
msg: "decimalToBinary(1) returns '1' (base case) and gives that value to the stack below. Then it pops off the stack.",
showMsgDelay: 5000,
removeElDelay: 10000,
}
];
const decimalToBinary = (input) => {
if (input === 0 || input === 1) {
return String(input);
} else {
return decimalToBinary(Math.floor(input / 2)) + (input % 2);
}
};
const showAnimation = () => {
result.innerText = "Call Stack Animation";
animationData.forEach((obj) => {
setTimeout(() => {
animationContainer.innerHTML += `
<p id="${obj.inputVal}" class="animation-frame">
decimalToBinary(${obj.inputVal})
</p>
`;
}, obj.addElDelay);
setTimeout(() => {
--fcc-editable-region--
document.getElementById(obj.inputVal);
--fcc-editable-region--
}, obj.showMsgDelay);
});
};
const checkUserInput = () => {
const inputInt = parseInt(numberInput.value);
if (!numberInput.value || isNaN(inputInt) || inputInt < 0) {
alert("Please provide a decimal number greater than or equal to 0");
return;
}
if (inputInt === 5) {
showAnimation();
return;
}
result.textContent = decimalToBinary(inputInt);
numberInput.value = "";
};
convertBtn.addEventListener("click", checkUserInput);
numberInput.addEventListener("keydown", (e) => {
if (e.key === "Enter") {
checkUserInput();
}
});
```

4
curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/learn-recursion-by-building-a-decimal-to-binary-converter/6464b25851863b0a119eb7b1.md
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@@ -1,8 +1,8 @@
---
id: 6464b25851863b0a119eb7b1
title: Step 105
title: Step 104
challengeType: 0
dashedName: step-105
dashedName: step-104
---
# --description--

4
curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/learn-recursion-by-building-a-decimal-to-binary-converter/6464b3adeee9310bd37ff636.md
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@@ -1,8 +1,8 @@
---
id: 6464b3adeee9310bd37ff636
title: Step 106
title: Step 105
challengeType: 0
dashedName: step-106
dashedName: step-105
---
# --description--

4
curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/learn-recursion-by-building-a-decimal-to-binary-converter/6464b8ccb1a5d612c2f857d1.md
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@@ -1,8 +1,8 @@
---
id: 6464b8ccb1a5d612c2f857d1
title: Step 107
title: Step 106
challengeType: 0
dashedName: step-107
dashedName: step-106
---
# --description--

4
curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/learn-recursion-by-building-a-decimal-to-binary-converter/6464c6d6698a8027f8c9d6be.md
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@@ -1,8 +1,8 @@
---
id: 6464c6d6698a8027f8c9d6be
title: Step 108
title: Step 107
challengeType: 0
dashedName: step-108
dashedName: step-107
---
# --description--

34
curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/learn-recursion-by-building-a-decimal-to-binary-converter/6464ad3c9b2e6cf58224cfa9.md → curriculum/challenges/english/15-javascript-algorithms-and-data-structures-22/learn-recursion-by-building-a-decimal-to-binary-converter/674dd79dcfa5690e16e59775.md
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@@ -1,5 +1,5 @@
---
id: 6464ad3c9b2e6cf58224cfa9
id: 674dd79dcfa5690e16e59775
title: Step 103
challengeType: 0
dashedName: step-103
@@ -9,7 +9,9 @@ dashedName: step-103
You have set the `id` attribute for your paragraph elements to the `obj.inputVal` property.
Now, use `getElementById` to select the element with that attribute value, again using the `obj.inputVal` property.
Now, use the `.getElementById()` method to select the element with that attribute value, again using the `obj.inputVal` property.
After that, set the `textContent` property of the selected element equal to the `msg` property of the current object, to update its text after the delay you specified earlier.
# --hints--
@@ -18,10 +20,36 @@ You should use the `.getElementById()` method to target the element where the `i
```js
assert.match(
String(showAnimation),
/setTimeout\s*\([\s\S]+document\.getElementById\s*\(\s*obj\.inputVal\s*\)|setTimeout\s*\([\s\S]+document\.getElementById\s*\(\s*obj\s*\[\s*('|"|`)\s*inputVal\s*\1\s*\]\s*\)/
/setTimeout\s*\([\s\S]+document\.getElementById\s*\(.*(?:obj\.inputVal|obj\s*\[\s*('|"|`)\s*inputVal\s*\1\s*\]).*\)/
);
```
You should chain `.textContent` to the `.getElementById()` method.
```js
assert.match(
String(showAnimation),
/setTimeout\s*\([\s\S]+document\.getElementById\s*\(.*(?:obj\.inputVal|obj\s*\[\s*('|"|`)\s*inputVal\s*\1\s*\]).*\)\s*\.\s*textContent/
);
```
You should set the `textContent` property of the targeted element equal to the `msg` property of the current object.
```js
const oldSetTimeout = setTimeout;
setTimeout = (functionName, delay) => {
functionName();
}
try {
showAnimation();
animationData.forEach((obj) => {
assert.equal(document.getElementById(obj.inputVal).textContent, obj.msg);
});
} finally {
setTimeout = oldSetTimeout;
}
```
# --seed--
## --seed-contents--