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// JavaScript Demo // Edit this code and click Run // Setup page document.body.style.fontFamily = 'Arial, sans-serif'; document.body.style.padding = '20px'; document.body.style.background = '#f5f5f5'; // Create container var container = document.createElement('div'); container.style.cssText = 'max-width: 500px; margin: 0 auto; background: white; padding: 30px; border-radius: 10px; box-shadow: 0 2px 10px rgba(0,0,0,0.1);'; // Title var title = document.createElement('h1'); title.textContent = 'JavaScript Demo'; title.style.cssText = 'color: #333; text-align: center; margin-bottom: 30px;'; container.appendChild(title); // Counter section var counterSection = document.createElement('div'); counterSection.style.cssText = 'background: #f9f9f9; padding: 20px; border-radius: 8px; text-align: center; margin-bottom: 20px;'; var count = 0; var countDisplay = document.createElement('h2'); countDisplay.textContent = 'Count: 0'; countDisplay.style.color = '#4CAF50'; counterSection.appendChild(countDisplay); var btnContainer = document.createElement('div'); btnContainer.style.marginTop = '15px'; var btnMinus = document.createElement('button'); btnMinus.textContent = '-'; btnMinus.style.cssText = 'padding: 10px 25px; font-size: 18px; margin: 5px; cursor: pointer;'; btnMinus.onclick = function() { count--; countDisplay.textContent = 'Count: ' + count; }; var btnReset = document.createElement('button'); btnReset.textContent = 'Reset'; btnReset.style.cssText = 'padding: 10px 25px; font-size: 18px; margin: 5px; cursor: pointer; background: #f44336; color: white; border: none; border-radius: 4px;'; btnReset.onclick = function() { count = 0; countDisplay.textContent = 'Count: ' + count; }; var btnPlus = document.createElement('button'); btnPlus.textContent = '+'; btnPlus.style.cssText = 'padding: 10px 25px; font-size: 18px; margin: 5px; cursor: pointer;'; btnPlus.onclick = function() { count++; countDisplay.textContent = 'Count: ' + count; }; btnContainer.appendChild(btnMinus); btnContainer.appendChild(btnReset); btnContainer.appendChild(btnPlus); counterSection.appendChild(btnContainer); container.appendChild(counterSection); // Input section var inputSection = document.createElement('div'); inputSection.style.cssText = 'background: #f9f9f9; padding: 20px; border-radius: 8px;'; var inputLabel = document.createElement('h3'); inputLabel.textContent = 'Greeting'; inputLabel.style.marginBottom = '15px'; inputSection.appendChild(inputLabel); var input = document.createElement('input'); input.type = 'text'; input.placeholder = 'Enter your name'; input.style.cssText = 'width: 100%; padding: 12px; font-size: 16px; border: 2px solid #ddd; border-radius: 5px; margin-bottom: 10px;'; var greeting = document.createElement('p'); greeting.style.cssText = 'font-size: 18px; color: #4CAF50; font-weight: bold; min-height: 25px;'; input.oninput = function() { if (input.value) { greeting.textContent = 'Hello, ' + input.value + '!'; } else { greeting.textContent = ''; } }; inputSection.appendChild(input); inputSection.appendChild(greeting); container.appendChild(inputSection); document.body.appendChild(container); console.log('JavaScript loaded successfully!');
Output