JSON Diff Viewer

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\n \n\n`;\n",[],[59,77],"5ec701ee-ef26-11f0-9c8a-42dde27851f2","app.ts","05ef5de2-ee71-11f0-a9c3-42dde27851f2",18,["D",1768160852627],"export const appJs = `\nimport React, { useState, useCallback, useEffect } from 'https://esm.sh/react@18';\nimport { createRoot } from 'https://esm.sh/react-dom@18/client';\nimport * as Diff from 'https://esm.sh/diff@5.2.0';\n\nconst h = React.createElement;\n\nconst defaultLeft = JSON.stringify({\n name: \"my-package\",\n version: \"1.0.0\",\n dependencies: {\n lodash: \"^4.17.21\"\n }\n}, null, 2);\n\nconst defaultRight = JSON.stringify({\n name: \"my-package\",\n version: \"1.1.0\",\n dependencies: {\n lodash: \"^4.17.21\",\n axios: \"^1.6.0\"\n },\n devDependencies: {\n typescript: \"^5.0.0\"\n }\n}, null, 2);\n\nfunction InputPanel({ label, value, onChange, onPaste }) {\n return h('div', { className: 'panel' },\n h('label', null, label),\n h('textarea', {\n value,\n onChange: (e) => onChange(e.target.value),\n onPaste,\n placeholder: 'Paste JSON here...',\n spellCheck: false,\n })\n );\n}\n\nfunction SplitDiffView({ left, right }) {\n const diff = Diff.diffLines(left, right);\n \n let leftLineNum = 1;\n let rightLineNum = 1;\n\n return h('div', { className: 'diff-split' },\n h('div', { className: 'diff-pane' },\n h('div', { className: 'diff-header' }, 'before.json'),\n h('div', { className: 'diff-content' },\n diff.map((part, i) => {\n if (part.added) return null;\n \n const lines = part.value.split('\\\\n').filter((_, idx, arr) => \n idx < arr.length - 1 || arr[idx] !== ''\n );\n \n return lines.map((line, j) => {\n const lineNum = leftLineNum++;\n const isRemoved = part.removed;\n return h('div', { \n key: i + '-' + j,\n className: 'diff-line' + (isRemoved ? ' removed' : ''),\n },\n h('span', { className: 'line-num' }, lineNum),\n h('span', { className: 'line-indicator' }, isRemoved ? '−' : ' '),\n h('span', { className: 'line-content' }, line || ' ')\n );\n });\n })\n )\n ),\n h('div', { className: 'diff-pane' },\n h('div', { className: 'diff-header' }, 'after.json'),\n h('div', { className: 'diff-content' },\n diff.map((part, i) => {\n if (part.removed) return null;\n \n const lines = part.value.split('\\\\n').filter((_, idx, arr) => \n idx < arr.length - 1 || arr[idx] !== ''\n );\n \n return lines.map((line, j) => {\n const lineNum = rightLineNum++;\n const isAdded = part.added;\n return h('div', { \n key: i + '-' + j,\n className: 'diff-line' + (isAdded ? ' added' : ''),\n },\n h('span', { className: 'line-num' }, lineNum),\n h('span', { className: 'line-indicator' }, isAdded ? '+' : ' '),\n h('span', { className: 'line-content' }, line || ' ')\n );\n });\n })\n )\n )\n );\n}\n\nfunction UnifiedDiffView({ left, right }) {\n const diff = Diff.diffLines(left, right);\n \n let oldLineNum = 1;\n let newLineNum = 1;\n\n const lines = [];\n \n diff.forEach((part, i) => {\n const partLines = part.value.split('\\\\n').filter((_, idx, arr) => \n idx < arr.length - 1 || arr[idx] !== ''\n );\n \n partLines.forEach((line, j) => {\n if (part.removed) {\n lines.push({\n key: i + '-' + j,\n type: 'removed',\n oldNum: oldLineNum++,\n newNum: null,\n content: line\n });\n } else if (part.added) {\n lines.push({\n key: i + '-' + j,\n type: 'added',\n oldNum: null,\n newNum: newLineNum++,\n content: line\n });\n } else {\n lines.push({\n key: i + '-' + j,\n type: 'unchanged',\n oldNum: oldLineNum++,\n newNum: newLineNum++,\n content: line\n });\n }\n });\n });\n\n return h('div', { className: 'diff-unified' },\n h('div', { className: 'diff-header' }, 'before.json → after.json'),\n h('div', { className: 'diff-content' },\n lines.map(line => \n h('div', { \n key: line.key,\n className: 'diff-line ' + line.type,\n },\n h('span', { className: 'line-num old' }, line.oldNum || ''),\n h('span', { className: 'line-num new' }, line.newNum || ''),\n h('span', { className: 'line-indicator' }, \n line.type === 'added' ? '+' : line.type === 'removed' ? '−' : ' '\n ),\n h('span', { className: 'line-content' }, line.content || ' ')\n )\n )\n )\n );\n}\n\nfunction DiffView({ left, right, isMobile }) {\n if (isMobile) {\n return h(UnifiedDiffView, { left, right });\n }\n return h(SplitDiffView, { left, right });\n}\n\nfunction App() {\n const [left, setLeft] = useState(defaultLeft);\n const [right, setRight] = useState(defaultRight);\n const [error, setError] = useState(null);\n const [diffKey, setDiffKey] = useState(0);\n const [isMobile, setIsMobile] = useState(window.innerWidth < 768);\n\n useEffect(() => {\n const handleResize = () => setIsMobile(window.innerWidth < 768);\n window.addEventListener('resize', handleResize);\n return () => window.removeEventListener('resize', handleResize);\n }, []);\n\n const formatJson = useCallback((setter, value) => {\n try {\n const parsed = JSON.parse(value);\n setter(JSON.stringify(parsed, null, 2));\n setError(null);\n } catch (e) {\n setError('Invalid JSON: ' + e.message);\n }\n }, []);\n\n const handlePaste = useCallback((setter) => (e) => {\n const pasted = e.clipboardData.getData('text');\n try {\n const parsed = JSON.parse(pasted);\n e.preventDefault();\n setter(JSON.stringify(parsed, null, 2));\n setError(null);\n } catch (err) {\n // Not valid JSON, let default paste happen\n }\n }, []);\n\n const runDiff = useCallback(() => {\n setError(null);\n try {\n JSON.parse(left);\n JSON.parse(right);\n setDiffKey(k => k + 1);\n } catch (e) {\n setError('Invalid JSON: ' + e.message);\n }\n }, [left, right]);\n\n return h('div', null,\n h('header', { className: 'header' },\n h('h1', { className: 'title' }, 'JSON Diff Viewer'),\n h('p', { className: 'subtitle' }, 'Compare and format JSON objects')\n ),\n\n h('div', { className: 'inputs' },\n h(InputPanel, {\n label: 'Before',\n value: left,\n onChange: setLeft,\n onPaste: handlePaste(setLeft),\n }),\n h(InputPanel, {\n label: 'After',\n value: right,\n onChange: setRight,\n onPaste: handlePaste(setRight),\n })\n ),\n\n h('div', { className: 'actions' },\n h('button', { className: 'primary', onClick: runDiff }, 'Compare')\n ),\n\n error && h('div', { className: 'error' }, error),\n\n h('div', { className: 'diff-container' },\n h(DiffView, { key: diffKey, left, right, isMobile })\n )\n );\n}\n\ncreateRoot(document.getElementById('root')).render(h(App));\n`;\n",[],[59,87],"f1a8187a-ee6f-11f0-b97d-42dde27851f2",["D",1768082501157],"deletedAt","legacyEnvVars","privacy","public","httpPrivacy","description","JSON diff viewer with 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Code