HTML 앱 라이브러리(HTMP app library)
추천글 : 【컴퓨터과학】 컴퓨터과학 목차, 【웹 프로그래밍】 HTML
1. HTML로 Linux rsync, SCP 코드 생성하기 [본문]
2. 구글 애드센스 Rage Click 방지하기 [본문]
3. CellMarker 2.0: HTML interactive table 만들기 [본문]
4. 웹페이지에서 텍스트 입력 시 DB에서 데이터 호출 구현 [본문]
5. AlphaFold2를 통한 단백질 라이브러리 구축 [본문]
6. 히포크라테스 기질테스트 프로그램과 12기질 장단점 [본문]
7. HTML로 Word Counter 만들기 [본문]
8. USD to KRW 환율 디스플레이 [본문]
9. 현재 포스팅 내 서치 엔진 [본문]
10. 말풍선 [본문]
11. 10진수와 16진수 상호 간 변환 [본문]
12. KST, PST, CST, EST 상호 간 변환 [본문]
13. 단순 Tic-Tac-Toe 게임 [본문]
14. meter-feet, kg-pound, 섭씨-화씨 상호 간 변환 [본문]
15. 한글 초성 퀴즈 만들기 [본문]
16. 이름 리스트에서 랜덤 뽑기 [본문]
17. 이름 리스트를 랜덤 셔플 [본문]
18. 백일, 천일, 만일 계산기 [본문]
19. 사칙연산 계산기 [본문]
a. 파이썬 앱 라이브러리
1. HTML로 Linux rsync, SCP 코드 생성하기 [목차]
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>File Transfer Command Generator</title>
</head>
<body>
<h2>File Transfer Command Generator</h2>
<form id="transferForm">
<label for="srcFile">Source File Address (e.g., ~/Downloads/test.txt):</label>
<input type="text" id="srcFile" name="srcFile" required><br><br>
<label for="destIP">Destination IP Address:</label>
<input type="text" id="destIP" name="destIP" required><br><br>
<label for="port">Port:</label>
<input type="number" id="port" name="port" required><br><br>
<label for="id">ID (username on the remote machine):</label>
<input type="text" id="id" name="id" required><br><br>
<label for="destPath">Destination File Path (e.g., ~/DATA1/):</label>
<input type="text" id="destPath" name="destPath" required><br><br>
<input type="button" value="Generate rsync command" onclick="generateCommand('rsync')">
<input type="button" value="Generate scp command" onclick="generateCommand('scp')"><br><br>
<textarea id="outputCommand" rows="4" cols="50" readonly></textarea>
</form>
<script>
function generateCommand(method) {
const srcFile = document.getElementById('srcFile').value;
const destIP = document.getElementById('destIP').value;
const port = document.getElementById('port').value;
const id = document.getElementById('id').value;
const destPath = document.getElementById('destPath').value;
let command = "";
if (method === "rsync") {
command = `rsync -avz -e 'ssh -p ${port}' ${srcFile} ${id}@${destIP}:${destPath}`;
} else if (method === "scp") {
command = `scp -P ${port} ${srcFile} ${id}@${destIP}:${destPath}`;
}
document.getElementById('outputCommand').value = command;
}
</script>
</body>
</html>
File Transfer Command Generator
2. 구글 애드센스 Rage Click 방지하기 [목차]
⑴ 목적
① 필요성 1. 정상적인 rage click이라고 하더라도 구글 애드센스의 수익성을 떨어트림
○ 해당 무효 클릭 자체의 수익은 당연히 무효가 됨
○ 다른 광고의 품질에 영향을 줌
② 필요성 2. 의도적으로 rage click을 일으켜서 광고 게시자의 애드센스 계정을 정지시키는 사례가 발견
⑵ 방법
① 1단계. 구글 애드센스 각각에 id를 부여 : data-ad-client 및 data-ad-slot을 확인한 뒤 id 부분을 적절하게 할당
#before
<script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>
<ins class="adsbygoogle"
style="display:block"
data-ad-format="fluid"
data-ad-layout-key="-eo+u+3m-ue+16q"
data-ad-client="ca-pub-######"
data-ad-slot="######"></ins>
<script>
(adsbygoogle = window.adsbygoogle || []).push({});
</script>
#after
<script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>
<ins class="adsbygoogle"
style="display:block"
data-ad-format="fluid"
data-ad-layout-key="-eo+u+3m-ue+16q"
data-ad-client="ca-pub-######"
data-ad-slot="######"
id="my_id"></ins>
<script>
(adsbygoogle = window.adsbygoogle || []).push({});
</script>
② 2단계. 아래 코드를 <head> ~ </head> 사이에 삽입
<script>
function preventRageClicks(elementId) {
// your ad element
let adElement = document.getElementById(elementId);
let clickCount = 0;
let lastClicked = 0;
let delay = 3000; // time in milliseconds
adElement.addEventListener('click', function (e) {
let timeNow = new Date().getTime();
if (timeNow - lastClicked < delay) {
clickCount += 1;
} else {
clickCount = 0;
}
if (clickCount > 1) {
e.preventDefault(); // prevents the default action i.e., stops the click event.
adElement.style.pointerEvents = "none"; // disable clicks
setTimeout(function () {
adElement.style.pointerEvents = "auto"; // enable clicks after delay
}, delay);
}
lastClicked = timeNow;
});
}
preventRageClicks('my_id');
<!-- If you have another id, just add it here -->
<!-- preventRageClicks('my_another_id'); -->
</script>
⑶ 해석
① clickCount 업데이트 정책
○ my_id를 가진 어떤 광고가 마지막 클릭 이후 delay (3초) 이내에 클릭되면 clickCount가 +1이 됨
○ my_id를 가진 어떤 광고가 마지막 클릭 이후 delay (3초) 이후에 클릭되면 clickCount는 0이 됨
② 만약 clickCount가 2가 되면 (즉, 총 3번을 빠르게 클릭하면) click을 비활성화
○ clickCount 역치값은 사용자 유입이 많아지면 적당히 상향 조절해야 할 것으로 보임
③ 그 뒤 delay (3초)의 시간이 되면 다시 click을 활성화
3. CellMarker 2.0: HTML interactive table 만들기 [목차]
⑴ 개요
① 목적 1. 셀 타입 마커 유전자에 CellMarker 2.0 정보를 반영
② 목적 2. 티스토리 HTML 편집창을 이용하여 interactive table을 만들 수 있음을 증명 (PoC 성격)
③ 목적 3. ChatGPT 4.0을 이용하여 html 및 javascript 코딩 역량을 실질적으로 확장하기 위함
⑵ 프로젝트
① 타겟 데이터셋 (ref)
② 코드
<!DOCTYPE html>
<html>
<head>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/PapaParse/5.3.0/papaparse.min.js"></script>
<style>
#csv-table {
border-collapse: collapse;
width: 100%;
}
#csv-table td {
border: 1px solid #ddd;
padding: 8px;
}
#csv-table tr:nth-child(even) {
background-color: #f2f2f2;
}
#csv-table tr:hover {
background-color: #ddd;
}
</style>
</head>
<body>
<input type="text" id="filter" placeholder="Filter table...">
<table id="csv-table"></table>
<script>
$(document).ready(function(){
var fullData = []; // We will store the full data set here
Papa.parse('https://blog.kakaocdn.net/dn/qnnYk/btsmscriEvQ/fStKJosLyfL0zl0j0qy6E0/Cell_marker_All.csv?attach=1&knm=tfile.csv', {
download: true,
header: true,
complete: function(results) {
fullData = results.data; // Store the full data set
updateTable(fullData.slice(0, 5)); // Initially show the first 5 rows
}
});
// This function updates the table with the given data
function updateTable(data) {
var table = $('#csv-table');
table.empty(); // Clear the table before adding new rows
$.each(data, function(index, value){
var row = $('<tr></tr>');
$.each(value, function(key, val){
$(row).append('<td>'+val+'</td>');
});
$(table).append(row);
});
}
// This function filters the data based on the given query and updates the table
function filterTable(query) {
var filteredData = fullData.filter(function(row) {
return Object.values(row).some(function(val) {
return String(val).includes(query);
});
});
updateTable(filteredData.slice(0, Math.min(5, filteredData.length))); // Show only the first 5 rows of the filtered data
}
// Listen for input events on the filter field
$('#filter').on('input', function() {
filterTable($(this).val()); // Filter the table whenever the input changes
});
});
</script>
</body>
</html>
○ 첫 5개만 표시되도록 함
○ 필터 부분에 타이핑을 하면 그 타이핑을 적어도 부분적으로 포함하는 행들이 출력됨
○ 필터 부분의 타이핑은 대소문자를 구분함 (case-sensitive)
○ 표는 줄무늬 디자인
○ 마우스 커서를 갖다 대면 색이 변함
③ HTML interactive table 예시
4. 웹페이지에서 텍스트 입력 시 DB에서 데이터 호출 구현 [목차]
⑴ 개요
① 목표 : AlphaFold2 데이터베이스 같은 방대한 데이터베이스를 포스팅에 적극적으로 활용
② 전략 : GitHub, NAS, 구글 드라이브, 원 드라이브, 기타 데이터 서버 등에 구축된 데이터베이스를 웹페이지에서 시각화하는 방안
③ 그 중 GitHub를 선택한 이유
○ GitHub는 파일 디렉토리와 유사한 형태로서 예측 가능한 url을 생성해줌
○ 예를 들어, '0'에 대응하는 파일은 https://github.com/JB243/nate9389/blob/main/Javascript/data/0.png에 저장돼 있음
⑵ 플러그인
① html 코드
<html>
<head>
</head>
<body>
<script language="javascript">
function printName(){
var result = 'https://github.com/JB243/nate9389/blob/main/Javascript/data/' + document.getElementById('name').value + '.png?raw=true';
document.getElementById("imgId").src = result
}
</script>
<form>
<div>
<label for="uname">Choose a character or a number: </label>
<input type = "text" id="name" name="name" onkeyup='printName()' required size="45" />
<span class="validity"></span>
</div>
</form>
<img id="imgId" src="">
</body>
</html>
② 구현 결과 : 다음 입력칸에 영문 소문자, 영문 대문자, 숫자, 특수기호, 혹은 한글자모 입력해보기
5. AlphaFold2를 통한 단백질 라이브러리 구축 [목차]
6. 히포크라테스 기질테스트 프로그램과 12기질 장단점 [목차]
7. HTML로 Word Counter 만들기 [목차]
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Word and Character Counter</title>
<script>
function updateCounters() {
let text = document.getElementById('textInput').value;
// Count words
let words = text.split(/\s+/).filter(function(word) {
return word.length > 0;
});
document.getElementById('wordCount').innerText = words.length;
// Count characters
let characters = text.length;
document.getElementById('characterCount').innerText = characters;
}
</script>
</head>
<body>
<h2>Word and Character Counter</h2>
<textarea id="textInput" oninput="updateCounters()" placeholder="Type your text here..." rows="10" cols="50"></textarea>
<div>
Word Count: <span id="wordCount">0</span>
</div>
<div>
Character Count: <span id="characterCount">0</span>
</div>
</body>
</html>
Word and Character Counter
Word Count: 0
Character Count: 0
8. USD to KRW 환율 디스플레이 [목차]
<!DOCTYPE html>
<html>
<head>
<title>USD to KRW Conversion</title>
<script>
// Function to fetch conversion rate and display it
function getConversionRate() {
fetch('https://api.exchangerate-api.com/v4/latest/USD')
.then(response => response.json())
.then(data => {
const rate = data.rates.KRW;
document.getElementById('conversionRate').innerHTML = `1 USD = ${rate.toFixed(2)} KRW`;
})
.catch(error => console.error('Error:', error));
}
</script>
</head>
<body onload="getConversionRate()">
<h2>USD to KRW Conversion Rate</h2>
<p id="conversionRate">Loading...</p>
</body>
</html>
USD to KRW Conversion Rate
Loading...
9. 현재 포스팅 내 서치 엔진 [목차]
<!DOCTYPE html>
<html>
<head>
<title>Local Page Search</title>
</head>
<body>
<h2>Enter Sentence to Find Matching Paragraph</h2>
<form id="searchForm">
<label for="sentence">Sentence:</label><br>
<input type="text" id="sentence" name="sentence" required><br><br>
<input type="submit" value="Search">
</form>
<br>
<div id="result"></div>
<script>
document.getElementById('searchForm').addEventListener('submit', function(e) {
e.preventDefault();
var sentence = document.getElementById('sentence').value.toLowerCase();
var paragraphs = document.querySelectorAll('p');
var found = false;
for (var i = 0; i < paragraphs.length; i++) {
if (paragraphs[i].textContent.toLowerCase().includes(sentence)) {
document.getElementById('result').innerHTML = 'Matching paragraph: ' + paragraphs[i].outerHTML;
found = true;
break;
}
}
if (!found) {
document.getElementById('result').innerText = 'No matching paragraph found';
}
});
</script>
</body>
</html>
Enter Sentence to Find Matching Paragraph
10. 말풍선 [목차]
<!DOCTYPE html>
<html>
<head>
<style>
.bubble {
position: relative;
display: inline-block;
padding: 10px 20px;
border-radius: 30px;
color: black;
}
.pink-bubble {
background: linear-gradient(to right, #FFD1DC, #FFB6C1); /* lighter pink gradient */
}
.blue-bubble {
background: linear-gradient(to right, #ADD8E6, #87CEFA); /* lighter blue gradient */
}
.bubble::after {
content: '';
position: absolute;
border: 10px solid transparent;
}
.pink-bubble::after {
border-top-color: #FFD1DC; /* light pink */
}
.blue-bubble::after {
border-top-color: #ADD8E6; /* light blue */
}
/* Positioning the triangle */
.bubble::after {
top: 100%;
left: 20px;
}
</style>
</head>
<body>
<div class="bubble pink-bubble">Hello, I'm a pink bubble!</div>
<div class="bubble blue-bubble">And I'm a blue bubble!</div>
</body>
</html>
Hello, I'm a pink bubble!
And I'm a blue bubble!
11. 10진수와 16진수 상호 간 변환 [목차]
<!DOCTYPE html>
<html>
<head>
<title>DEC to HEX and HEX to DEC Converter</title>
</head>
<body>
<h2>DEC to HEX and HEX to DEC Converter</h2>
<!-- Input for DEC to HEX conversion -->
<div>
<label for="decInput">Enter Decimal:</label>
<input type="number" id="decInput" />
<button onclick="convertDecToHex()">Convert to HEX</button>
</div>
<p id="decToHexResult"></p>
<!-- Input for HEX to DEC conversion -->
<div>
<label for="hexInput">Enter Hexadecimal:</label>
<input type="text" id="hexInput" />
<button onclick="convertHexToDec()">Convert to DEC</button>
</div>
<p id="hexToDecResult"></p>
<script>
// Function to convert DEC to HEX
function convertDecToHex() {
var decValue = document.getElementById('decInput').value;
var hexValue = parseInt(decValue).toString(16).toUpperCase();
document.getElementById('decToHexResult').innerHTML = "Hexadecimal: " + hexValue;
}
// Function to convert HEX to DEC
function convertHexToDec() {
var hexValue = document.getElementById('hexInput').value;
var decValue = parseInt(hexValue, 16);
document.getElementById('hexToDecResult').innerHTML = "Decimal: " + decValue;
}
</script>
</body>
</html>DEC to HEX and HEX to DEC Converter
12. KST, PST, CST, EST 상호 간 변환 [목차]
⑴ Daylight Saving Time (DST) (e.g., EST → EDT, CST → CDT, PST → PDT)
① 낮이 긴 봄, 여름에 1시간씩 일찍 일과를 시작하기 위함
② 북미 지역(e.g., 미국, 캐나다)에서 보통 3월 2번째 일요일 ~ 11월 1번째 일요일까지 적용됨
⑵ 코드 구현
<!DOCTYPE html>
<html>
<head>
<title>Time Zone Converter</title>
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.29.1/moment.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment-timezone/0.5.34/moment-timezone-with-data.min.js"></script>
</head>
<body>
<div style="font-family: Arial, sans-serif; max-width: 600px; margin: 20px auto; padding: 20px; box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);">
<h2 style="text-align: center;">Time Zone Converter</h2>
<div style="margin-bottom: 20px;">
<label for="sourceTime">Enter Time (YYYY-MM-DD HH:mm):</label>
<!-- <input type="text" id="sourceTime" value="2024-02-17 10:00" style="width: 100%; padding: 8px; margin-top: 5px;"> -->
<input type="text" id="sourceTime" style="width: 100%; padding: 8px; margin-top: 5px;">
</div>
<div style="margin-bottom: 20px;">
<label for="sourceZone">Source Time Zone:</label>
<select id="sourceZone" style="width: 100%; padding: 8px; margin-top: 5px;">
<option value="Asia/Seoul">KST</option>
<option value="America/Los_Angeles">PST</option>
<option value="America/Chicago">CST</option>
<option value="America/New_York">EST</option>
</select>
</div>
<div style="margin-bottom: 20px;">
<label for="targetZone">Target Time Zone:</label>
<select id="targetZone" style="width: 100%; padding: 8px; margin-top: 5px;">
<option value="Asia/Seoul">KST</option>
<option value="America/Los_Angeles">PST</option>
<option value="America/Chicago">CST</option>
<option value="America/New_York">EST</option>
</select>
</div>
<button onclick="convertTime()" style="width: 100%; padding: 10px; background-color: #007bff; color: white; border: none; cursor: pointer;">Convert</button>
<p id="resultTime" style="margin-top: 20px;"></p>
</div>
<script>
function convertTime() {
const sourceTimeValue = document.getElementById('sourceTime').value;
const sourceZoneSelect = document.getElementById('sourceZone');
const targetZoneSelect = document.getElementById('targetZone');
const sourceZone = sourceZoneSelect.options[sourceZoneSelect.selectedIndex].value;
const targetZone = targetZoneSelect.options[targetZoneSelect.selectedIndex].value;
// Using moment-timezone to parse the input time in the source time zone
const sourceTimeMoment = moment.tz(sourceTimeValue, "YYYY-MM-DD HH:mm", sourceZone);
// Then, converting to the target time zone
const convertedTime = sourceTimeMoment.tz(targetZone).format('dddd, MMM D, YYYY, hh:mm A z');
// Display the result
document.getElementById('resultTime').innerText = "Converted Time: " + convertedTime;
}
document.addEventListener('DOMContentLoaded', function() {
var currentDateTime = moment().format('YYYY-MM-DD HH:mm');
document.getElementById('sourceTime').value = currentDateTime;
});
</script>
</body>
</html>
Time Zone Converter
13. 단순 Tic-Tac-Toe 게임 (ref) [목차]
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Tic Tac Toe Game</title>
<style>
.grid {
display: grid;
grid-template-columns: repeat(3, 100px);
grid-gap: 5px;
margin: 20px auto;
}
.cell {
width: 100px;
height: 100px;
background-color: #f0f0f0;
display: flex;
justify-content: center;
align-items: center;
font-size: 24px;
cursor: pointer;
}
</style>
</head>
<body>
<div id="game" class="grid"></div>
<script>
const playerX = 'X';
const playerO = 'O';
let currentPlayer = playerX;
// Initialize the game board
const gameBoard = Array(9).fill(null);
// Function to create the game grid
const createGrid = () => {
const gameElement = document.getElementById('game');
gameBoard.forEach((cell, index) => {
const cellElement = document.createElement('div');
cellElement.id = index;
cellElement.className = 'cell';
cellElement.addEventListener('click', cellClick, { once: true });
gameElement.appendChild(cellElement);
});
};
// Handle cell click
function cellClick(event) {
const cellIndex = event.target.id;
if (!gameBoard[cellIndex]) {
gameBoard[cellIndex] = currentPlayer;
event.target.innerText = currentPlayer;
if (checkWinner(currentPlayer)) {
alert(`${currentPlayer} wins!`);
resetGame();
return; // Stop further execution
} else if (gameBoard.every(cell => cell !== null)) {
alert("It's a tie!");
resetGame();
return; // Stop further execution
}
currentPlayer = currentPlayer === playerX ? playerO : playerX;
}
}
// Check for a winner
function checkWinner(player) {
const winningCombinations = [
[0, 1, 2],
[3, 4, 5],
[6, 7, 8],
[0, 3, 6],
[1, 4, 7],
[2, 5, 8],
[0, 4, 8],
[2, 4, 6],
];
return winningCombinations.some(combination => {
return combination.every(index => {
return gameBoard[index] === player;
});
});
}
// Reset the game
function resetGame() {
setTimeout(() => {
document.getElementById('game').innerHTML = '';
gameBoard.fill(null);
createGrid();
currentPlayer = playerX;
}, 1000);
}
createGrid();
</script>
</body>
</html>
14. meter-feet, kg-pound, 섭씨-화씨 상호 간 변환 [목차]
<!DOCTYPE html>
<html>
<head>
<title>Conversion Tool</title>
</head>
<body>
<h1>Conversion Tool</h1>
<label for="conversionType">Choose a conversion type:</label>
<select id="conversionType">
<option value="metersToFeet">Meters to Feet</option>
<option value="feetToMeters">Feet to Meters</option>
<option value="kilogramsToPounds">Kilograms to Pounds</option>
<option value="poundsToKilograms">Pounds to Kilograms</option>
<option value="celsiusToFahrenheit">Celsius to Fahrenheit</option>
<option value="fahrenheitToCelsius">Fahrenheit to Celsius</option>
</select>
<br><br>
<label for="inputValue">Enter value:</label>
<input type="number" id="inputValue" placeholder="Enter value">
<button onclick="convert()">Convert</button>
<h2 id="result">Converted value: </h2>
<script>
function convert() {
var conversionType = document.getElementById("conversionType").value;
var value = parseFloat(document.getElementById("inputValue").value);
var result = 0;
if (!value) {
document.getElementById("result").innerText = "Please enter a valid number";
return;
}
if (conversionType === "metersToFeet") {
result = value * 3.28084;
} else if (conversionType === "feetToMeters") {
result = value / 3.28084;
} else if (conversionType === "kilogramsToPounds") {
result = value * 2.20462;
} else if (conversionType === "poundsToKilograms") {
result = value / 2.20462;
} else if (conversionType === "celsiusToFahrenheit") {
result = (value * 9/5) + 32;
} else if (conversionType === "fahrenheitToCelsius") {
result = (value - 32) * 5/9;
}
document.getElementById("result").innerText = "Converted value: " + result.toFixed(2);
}
</script>
</body>
</html>
Conversion Tool App
Converted value:
15. 한글 초성 퀴즈 만들기 [목차]
<!DOCTYPE html>
<html lang="ko">
<head>
<meta charset="UTF-8">
<title>랜덤 초성 생성기</title>
<script>
// 초성 리스트
const choSung = ['ㄱ', 'ㄴ', 'ㄷ', 'ㄹ', 'ㅁ', 'ㅂ', 'ㅅ', 'ㅇ', 'ㅈ', 'ㅊ', 'ㅋ', 'ㅌ', 'ㅍ', 'ㅎ'];
function generateChoSung() {
// 두 개의 랜덤 초성 생성
const first = choSung[Math.floor(Math.random() * choSung.length)];
const second = choSung[Math.floor(Math.random() * choSung.length)];
// HTML에 표시
document.getElementById('choSungDisplay').innerText = first + second;
}
</script>
</head>
<body>
<h1>랜덤 초성 생성기</h1>
<button onclick="generateChoSung()">초성 생성</button>
<div id="choSungDisplay" style="font-size: 24px; margin-top: 20px;"></div>
</body>
</html>
랜덤 초성 생성기
16. 이름 리스트에서 랜덤 뽑기 [목차]
<!DOCTYPE html>
<html lang="ko">
<head>
<meta charset="UTF-8">
<title>랜덤 이름 선택기</title>
<style>
body {
font-family: Arial, sans-serif;
display: flex;
flex-direction: column;
align-items: center;
margin-top: 50px;
}
input[type="text"], button {
margin: 5px;
padding: 10px;
font-size: 16px;
}
.names-list, .selected-name, .countdown {
margin-top: 20px;
padding: 10px;
border: 1px solid #ddd;
width: 50%;
text-align: center;
}
.selected-name, .countdown {
font-size: 20px;
font-weight: bold;
color: #333;
}
.hidden {
display: none;
}
</style>
</head>
<body>
<input type="text" id="nameInput" placeholder="이름 입력">
<button onclick="addName()">이름 추가</button>
<div class="names-list" id="namesList"></div>
<button onclick="selectRandomName()">랜덤 선택</button>
<div class="selected-name hidden" id="selectedName"></div>
<div class="countdown hidden" id="countdown"></div>
<script>
let names = [];
let countdownInterval;
let countdownTimeout;
function addName() {
const input = document.getElementById('nameInput');
const name = input.value.trim();
if (name && !names.includes(name)) {
names.push(name);
const nameDiv = document.createElement('div');
nameDiv.textContent = name;
document.getElementById('namesList').appendChild(nameDiv);
input.value = '';
input.focus();
}
}
function selectRandomName() {
if (names.length === 0) {
alert('이름을 추가해주세요!');
return;
}
const randomIndex = Math.floor(Math.random() * names.length);
const selectedName = names[randomIndex];
const selectedNameDiv = document.getElementById('selectedName');
selectedNameDiv.textContent = `선택된 사람: ${selectedName}`;
selectedNameDiv.classList.remove('hidden');
startCountdown(3);
}
function startCountdown(seconds) {
const countdownDiv = document.getElementById('countdown');
countdownDiv.textContent = seconds;
countdownDiv.classList.remove('hidden');
clearInterval(countdownInterval);
clearTimeout(countdownTimeout);
countdownInterval = setInterval(() => {
seconds -= 1;
countdownDiv.textContent = seconds;
if (seconds === 0) {
clearInterval(countdownInterval);
}
}, 1000);
countdownTimeout = setTimeout(() => {
document.getElementById('selectedName').classList.add('hidden');
countdownDiv.classList.add('hidden');
}, 3000);
}
</script>
</body>
</html>
17. 이름 리스트를 랜덤 셔플 [목차]
<!DOCTYPE html>
<html lang="ko">
<head>
<meta charset="UTF-8">
<title>이름 셔플</title>
<style>
body {
font-family: Arial, sans-serif;
display: flex;
flex-direction: column;
align-items: center;
margin-top: 50px;
}
input[type="text"], button {
margin: 5px;
padding: 10px;
font-size: 16px;
}
.names-list, .shuffled-names {
margin-top: 20px;
padding: 10px;
border: 1px solid #ddd;
width: 50%;
text-align: center;
}
.shuffled-names {
font-size: 18px;
font-weight: bold;
color: #333;
}
</style>
</head>
<body>
<input type="text" id="nameInput" placeholder="이름 입력">
<button onclick="addName()">이름 추가</button>
<div class="names-list" id="namesList"></div>
<button onclick="shuffleNames()">이름 셔플</button>
<div class="shuffled-names" id="shuffledNames"></div>
<script>
let names = [];
function addName() {
const input = document.getElementById('nameInput');
const name = input.value.trim();
if (name && !names.includes(name)) {
names.push(name);
const nameDiv = document.createElement('div');
nameDiv.textContent = name;
document.getElementById('namesList').appendChild(nameDiv);
input.value = '';
input.focus();
}
}
function shuffleNames() {
if (names.length === 0) {
alert('이름을 추가해주세요!');
return;
}
const shuffledNames = [...names];
for (let i = shuffledNames.length - 1; i > 0; i--) {
const j = Math.floor(Math.random() * (i + 1));
[shuffledNames[i], shuffledNames[j]] = [shuffledNames[j], shuffledNames[i]];
}
const shuffledNamesDiv = document.getElementById('shuffledNames');
shuffledNamesDiv.innerHTML = '셔플된 이름 목록: ' + shuffledNames.join(', ');
}
</script>
</body>
</html>
18. 백일, 천일, 만일 계산기 [목차]
<!DOCTYPE html>
<html lang="ko">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>날짜 계산기</title>
</head>
<body>
<h1>특정 날짜로부터 N일 째 되는 날 계산기</h1>
<label for="startDate">시작 날짜:</label>
<input type="date" id="startDate" name="startDate">
<br><br>
<label for="daysToAdd">더할 일 수:</label>
<input type="number" id="daysToAdd" name="daysToAdd">
<br><br>
<button onclick="calculateDate()">계산하기</button>
<p id="result"></p>
<script>
function calculateDate() {
const startDate = document.getElementById('startDate').value;
const daysToAdd = parseInt(document.getElementById('daysToAdd').value);
if (!startDate || isNaN(daysToAdd)) {
alert("올바른 날짜와 일 수를 입력해주세요.");
return;
}
const startDateObj = new Date(startDate);
startDateObj.setDate(startDateObj.getDate() + daysToAdd);
const resultDate = startDateObj.toISOString().split('T')[0];
document.getElementById('result').innerText = `계산된 날짜: ${resultDate}`;
}
</script>
</body>
</html>
특정 날짜로부터 N일 째 되는 날 계산기
19. 사칙연산 계산기 [목차]
<!DOCTYPE html>
<html lang="ko">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>계산기</title>
</head>
<body>
<div class="calculator">
<input type="text" class="display" id="display" readonly>
<div class="buttons">
<button onclick="clearDisplay()" class="clear">C</button>
<button onclick="appendToDisplay('(')">(</button>
<button onclick="appendToDisplay(')')">)</button>
<button onclick="appendToDisplay('/')">/</button>
<button onclick="appendToDisplay('7')">7</button>
<button onclick="appendToDisplay('8')">8</button>
<button onclick="appendToDisplay('9')">9</button>
<button onclick="appendToDisplay('*')" class="operator">*</button>
<button onclick="appendToDisplay('4')">4</button>
<button onclick="appendToDisplay('5')">5</button>
<button onclick="appendToDisplay('6')">6</button>
<button onclick="appendToDisplay('-')" class="operator">-</button>
<button onclick="appendToDisplay('1')">1</button>
<button onclick="appendToDisplay('2')">2</button>
<button onclick="appendToDisplay('3')">3</button>
<button onclick="appendToDisplay('+')" class="operator">+</button>
<button onclick="appendToDisplay('0')">0</button>
<button onclick="appendToDisplay('.')">.</button>
<button onclick="calculate()" class="equal">=</button>
</div>
</div>
<script>
function clearDisplay() {
document.getElementById('display').value = '';
}
function appendToDisplay(value) {
document.getElementById('display').value += value;
}
function calculate() {
try {
const display = document.getElementById('display');
display.value = eval(display.value);
} catch (error) {
alert('잘못된 입력입니다!');
}
}
</script>
</body>
</html>
입력: 2023.08.24 09:23
수정: 2024.07.21 19:42
'▶ 자연과학 > ▷ 웹 프로그래밍' 카테고리의 다른 글
| 【웹 프로그래밍】 ChatGPT Store로 블로그를 위한 챗봇 만들기 (2) | 2024.01.15 |
|---|---|
| 【웹 프로그래밍】 웹사이트 일반 (0) | 2022.09.25 |
| 【웹 프로그래밍】 Javascript (0) | 2018.12.10 |
| 【웹 프로그래밍】 HTML (0) | 2018.12.10 |
| 【프로그램】 히포크라테스 기질테스트 프로그램과 12기질 장단점 (2) | 2018.10.11 |
최근댓글