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🧮 Calculadora

\n \n

\n \n \n \n \n\n \n \n \n \n\n \n \n \n \n\n \n \n \n \n\n \n \n \n \n

\n \n

\n \n \n`;\n\nexport default function handler(req: Request): Response {\n const url = new URL(req.url);\n\n // ?expr=... returns JSON instead of HTML\n if (url.searchParams.has(\"expr\")) {\n const expr = url.searchParams.get(\"expr\")!;\n try {\n return Response.json({ expr, result: solveExpression(expr) });\n } catch {\n return Response.json({ expr, error: \"Could not parse expression\" }, {\n status: 400,\n });\n }\n }\n\n return new Response(PAGE, {\n headers: { \"content-type\": \"text/html; charset=utf-8\" },\n });\n}\n","children",[],[59],["D",1787195321120],[],[19],"846a3537-344c-44c4-97c9-f355bbeb185c","client.ts","4eccc6ea-9c44-11f1-a87a-1607ee4eb77e",19,["D",1787195508327],"script","// Lógica da calculadora: monta a expressão pelos botões e avalia no backend.\nconst display = document.getElementById(\"display\") as HTMLInputElement;\nlet expr = \"\";\n\nfunction pretty(s: string): string {\n // Mostra símbolos bonitos; o backend entende a forma ASCII.\n return s.replace(/sqrt\\(/g, \"√(\").replace(/\\*/g, \"×\").replace(/\\//g, \"÷\");\n}\n\nfunction render(): void {\n display.value = expr ? 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