[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8,"_9":10},"actionData","errors","root",{"_221":222,"_223":224},"routes/_app.x.$handle.$name",{"_103":102,"_38":51,"_112":93,"_33":113,"_13":14,"_114":-5,"_11":115,"_116":117,"_118":119,"_120":121,"_122":123,"_26":-5,"_124":-5,"_125":-5,"_126":31,"_127":128,"_129":65,"_130":-5,"_131":-5,"_132":133},"routes/_app.x.$handle.$name.branch.$branch.version.$version.diff",{"_11":12,"_13":14,"_15":16,"_17":18,"_19":-5},"project",{"_49":50,"_38":51,"_44":52,"_53":-5,"_54":31,"_55":56,"_57":56,"_58":59,"_60":-5,"_19":61,"_62":63,"_64":65,"_66":-5,"_67":-5,"_68":69,"_70":71,"_72":-5,"_73":-5,"_74":-5,"_75":-5,"_76":77,"_78":77,"_79":80,"_81":80,"_82":80,"_83":77,"_84":77,"_85":86,"_87":88,"_89":90,"_91":31},"version",9,"changes",[25],"aiChatInfo",{"_20":21,"_22":-5,"_23":-5,"_24":-5},"userId","aiChatMessageId","ead08edc-c507-45e7-8f64-2347caf9b85f","aiChatThreadId","aiChatThreadUserId","aiChatThreadTitle",{"_26":27,"_28":29,"_30":31,"_32":31,"_33":34,"_35":34},"file",{"_36":37,"_38":34,"_39":40,"_41":43,"_44":45,"_46":14,"_47":48,"_30":31},"previous",{"_36":37,"_38":34,"_39":40,"_41":42},"deleted",false,"deletedHere","path","solver.ts","latestPath","fileId","2f047772-9c44-11f1-b8f1-1607ee4eb77e","name","fileType","http","content","// Math expression solver — live page + JSON API.\n// Try: 2 + 3 * 4, (10 - 4) / 3, 2^8, or sqrt(16) + 5\n\n// Tiny, safe arithmetic parser (no eval).\nfunction solveExpression(expr: string): number {\n const tokens = expr\n .replace(/\\s+/g, \"\")\n .split(/([()+\\-*/^])/)\n .filter((t) => t !== \"\");\n\n let pos = 0;\n const peek = () => tokens[pos];\n const next = () => tokens[pos++];\n\n function parseExpr(): number {\n let value = parseTerm();\n while (peek() === \"+\" || peek() === \"-\") {\n const op = next();\n const rhs = parseTerm();\n value = op === \"+\" ? value + rhs : value - rhs;\n }\n return value;\n }\n\n function parseTerm(): number {\n let value = parsePower();\n while (peek() === \"*\" || peek() === \"/\") {\n const op = next();\n const rhs = parsePower();\n value = op === \"*\" ? value * rhs : value / rhs;\n }\n return value;\n }\n\n function parsePower(): number {\n const base = parseUnary();\n if (peek() === \"^\") return Math.pow(base, parsePower());\n return base;\n }\n\n function parseUnary(): number {\n if (peek() === \"-\") {\n next();\n return -parseUnary();\n }\n return parseAtom();\n }\n\n function parseAtom(): number {\n const t = next();\n if (t === \"(\") {\n const v = parseExpr();\n next(); // consume ')'\n return v;\n }\n if (t === \"sqrt(\") {\n const v = parseExpr();\n next(); // consume ')'\n return Math.sqrt(v);\n }\n return parseFloat(t);\n }\n\n return parseExpr();\n}\n\nconst PAGE = `\n\n \n \n \n Math Expression Solver\n \n \n \n

🧮 Math Expression Solver

\n \n \n

Try: 2 + 3 * 4 · (10 - 4) / 3 · 2^8 · sqrt(16) + 5

🧮 Math Expression Solver

\n \n \n

Try: 2 + 3 * 4 · (10 - 4) / 3 · 2^8 · sqrt(16) + 5

\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","createdAt",["D",1787195378834],"branchVersion","branchId","1a188d9b-a4fd-45a4-bdc9-be224fdc4125","id","79bd5e91-22ca-4819-95f5-419294921179","math-expression-solver",["D",1787195127072],"deletedAt","legacyEnvVars","privacy","public","httpPrivacy","description","Solve math expressions with a live web page","imageUrl","6081d400-009c-43ae-a329-8b1cc2928173","pinnedFileId","0346d396-9c44-11f1-b82b-1607ee4eb77e","pinPreview",true,"pinMigrated","screenshotVersion","likeCount",0,"orgId","01a01d20-a5e3-76fa-80e7-a57a0ad3b22d","tursoName","tursoHostname","tursoMeasuredAt","pinned","userPerm","r","valPerm","blobPerm","rw","emailPerm","sqlitePerm","projectPerm","telemetryPerm","user",{"_103":102,"_111":107},"org",{"_103":102,"_104":105,"_106":107,"_19":61,"_108":109,"_110":31},"branch",{"_13":92,"_38":93,"_49":48,"_94":50,"_95":-5,"_96":-5,"_97":-5,"_98":-5,"_99":-5,"_100":51,"_101":102},"isOwned",19,"main","projectId","forkedBranchId","forkedBranchVersion","forkedProjectPrivacy","forkedProjectId","forkedProjectOrgId","projectName","userHandle","samuelfiais","handle","displayName","Samuel Fiais","avatar","https://avatars.githubusercontent.com/u/80596893?v=4","tier","free","canRestrictVals","profileImageUrl","branchName","","adoptOrgId",{"_49":50,"_38":51,"_44":217,"_53":-5,"_54":31,"_55":56,"_57":56,"_58":59,"_60":-5,"_19":61,"_62":63,"_64":65,"_66":-5,"_67":-5,"_68":69,"_70":71,"_72":-5,"_73":-5,"_74":-5,"_75":-5,"_76":77,"_78":77,"_79":80,"_81":80,"_82":80,"_83":77,"_84":77,"_85":218,"_87":219,"_89":220,"_91":31},"tree",[192,193,194,195,196,197],"files",[192,193,194,195,196,197],"counts",{"_182":69,"_183":159,"_184":69,"_185":186,"_187":188},"contents",[134,135,136,137,138,139],"upstreamProject","upstreamBranch","emptyEnvVars","flags",[],"hasHttpFiles","grants","orgs","customDomains",{},{"_49":175,"_38":176,"_36":177,"_141":-5,"_47":48,"_46":178,"_142":31,"_44":179,"_13":69,"_39":152,"_41":180,"_30":31,"_145":-5,"_33":181},{"_49":169,"_38":170,"_36":171,"_141":-5,"_47":48,"_46":144,"_142":31,"_44":172,"_13":69,"_39":26,"_41":173,"_30":31,"_145":-5,"_33":174},{"_49":162,"_38":163,"_36":164,"_141":-5,"_47":48,"_46":165,"_142":31,"_44":166,"_13":69,"_39":40,"_41":167,"_30":31,"_145":-5,"_33":168},{"_49":155,"_38":156,"_36":63,"_141":-5,"_47":48,"_46":157,"_142":65,"_44":158,"_13":159,"_39":40,"_41":160,"_30":31,"_145":-5,"_33":161},{"_49":147,"_38":148,"_36":149,"_141":-5,"_47":48,"_46":150,"_142":31,"_44":151,"_13":69,"_39":152,"_41":153,"_30":31,"_145":-5,"_33":154},{"_49":140,"_38":34,"_36":37,"_141":-5,"_47":48,"_46":14,"_142":31,"_44":143,"_13":144,"_39":40,"_41":43,"_30":31,"_145":-5,"_33":146},"8ed1bc97-45b3-4911-8a46-8dd1f03fe815","parentId","latest",["D",1787195378834],2,"label",[34],"ffd23dc0-30e4-408e-9500-64ede8aa80e4","probe.ts","0cb23038-9c44-11f1-bee4-1607ee4eb77e",3,["D",1787195150983],"script","import { fetch_val_endpoint } from \"https://esm.town/v/std/http\";\n\nconst res = await fetch_val_endpoint(\"samuelfiais/math-expression-solver\", \"/main.ts\");\nconsole.log(\"plain\", res.status, (await res.text()).slice(0, 100));\n",[148],"168bf7d0-322f-406b-9636-c4fa4d47e657","main.ts",8,["D",1787195321120],1,"// O endpoint real do projeto está em solver.ts.\n// Este arquivo apenas repassa para ele, então qualquer acesso ao main funciona.\nexport { default } from \"./solver.ts\";\n",[156],"54d7f2d5-d2de-4c9a-b183-80432a3a1a19","index.ts","18daf1c4-9c44-11f1-9560-1607ee4eb77e",4,["D",1787195171383],"// A simple math expression solver with a live web page.\n// Try: 2 + 3 * 4, (10 - 4) / 3, 2^8, or sqrt(16) + 5\nimport { serveFile } from \"https://esm.town/v/std/utils/index.ts\";\n\n// Evaluate an expression safely using our own tiny parser.\nfunction solveExpression(expr: string): number {\n const tokens = expr\n .replace(/\\s+/g, \"\")\n .split(/([()+\\-*/^])/)\n .filter((t) => t !== \"\");\n\n let pos = 0;\n const peek = () => tokens[pos];\n const next = () => tokens[pos++];\n\n function parseExpr(): number {\n let value = parseTerm();\n while (peek() === \"+\" || peek() === \"-\") {\n const op = next();\n const rhs = parseTerm();\n value = op === \"+\" ? value + rhs : value - rhs;\n }\n return value;\n }\n\n function parseTerm(): number {\n let value = parsePower();\n while (peek() === \"*\" || peek() === \"/\") {\n const op = next();\n const rhs = parsePower();\n value = op === \"*\" ? value * rhs : value / rhs;\n }\n return value;\n }\n\n function parsePower(): number {\n const base = parseUnary();\n if (peek() === \"^\") return Math.pow(base, parsePower());\n return base;\n }\n\n function parseUnary(): number {\n if (peek() === \"-\") {\n next();\n return -parseUnary();\n }\n return parseAtom();\n }\n\n function parseAtom(): number {\n const t = next();\n if (t === \"(\") {\n const v = parseExpr();\n next(); // consume ')'\n return v;\n }\n if (t === \"sqrt(\") {\n const v = parseExpr();\n next(); // consume ')'\n return Math.sqrt(v);\n }\n return parseFloat(t);\n }\n\n return parseExpr();\n}\n\nexport default async function handler(req: Request): Promise {\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 serveFile(req, \"index.html\");\n}\n",[163],"50e89d41-2b57-4b2c-afd6-747db8ef09a4","index.html","070fa48a-9c44-11f1-b82b-1607ee4eb77e",["D",1787195141531],"\n\n \n \n \n Math Expression Solver\n \n \n \n

🧮 Math Expression Solver

\n \n \n

\n Try: 2 + 3 * 4 · (10 - 4) / 3 · 2^8 · sqrt(16) + 5\n

\n \n \n\n",[170],"396aa495-d4fd-4f59-96b2-d1e7df3c56f5","client.ts","4eccc6ea-9c44-11f1-a87a-1607ee4eb77e",6,["D",1787195261886],"// Client-side logic for the math expression solver page.\nconst input = document.getElementById(\"input\") as HTMLInputElement;\nconst result = document.getElementById(\"result\")!;\n\nasync function solve(): Promise {\n const expr = input.value.trim();\n if (!expr) return;\n result.textContent = \"…\";\n const res = await fetch(\"?expr=\" + encodeURIComponent(expr));\n const data = await res.json();\n result.className = \"result\" + (data.error ? \" error\" : \"\");\n result.textContent = data.error ? \"❌ \" + data.error : expr + \" = \" + data.result;\n}\n\n(document.getElementById(\"solve\") as HTMLButtonElement).onclick = solve;\ninput.addEventListener(\"keydown\", (e) => {\n if (e.key === \"Enter\") solve();\n});\n",[176],"pulls","branches","forks","envVars",{"_189":69,"_191":69},"connections",{"_189":69,"_190":69},"count","unfilledCount","emptyCount",{"_49":175,"_38":176,"_36":177,"_141":-5,"_47":48,"_46":178,"_142":31,"_44":214,"_13":69,"_39":152,"_41":180,"_30":31,"_145":-5,"_199":215,"_33":216},{"_49":169,"_38":170,"_36":171,"_141":-5,"_47":48,"_46":144,"_142":31,"_44":211,"_13":69,"_39":26,"_41":173,"_30":31,"_145":-5,"_199":212,"_33":213},{"_49":162,"_38":163,"_36":164,"_141":-5,"_47":48,"_46":165,"_142":31,"_44":208,"_13":69,"_39":40,"_41":167,"_30":31,"_145":-5,"_199":209,"_33":210},{"_49":155,"_38":156,"_36":63,"_141":-5,"_47":48,"_46":157,"_142":65,"_44":205,"_13":159,"_39":40,"_41":160,"_30":31,"_145":-5,"_199":206,"_33":207},{"_49":147,"_38":148,"_36":149,"_141":-5,"_47":48,"_46":150,"_142":31,"_44":202,"_13":69,"_39":152,"_41":153,"_30":31,"_145":-5,"_199":203,"_33":204},{"_49":140,"_38":34,"_36":37,"_141":-5,"_47":48,"_46":14,"_142":31,"_44":198,"_13":144,"_39":40,"_41":43,"_30":31,"_145":-5,"_199":200,"_33":201},["D",1787195378834],"children",[],[34],["D",1787195150983],[],[148],["D",1787195321120],[],[156],["D",1787195171383],[],[163],["D",1787195141531],[],[170],["D",1787195261886],[],[176],["D",1787195127072],{"_103":102,"_111":107},{"_103":102,"_104":105,"_106":107,"_19":61,"_108":109,"_110":31},{"_13":92,"_38":93,"_49":48,"_94":50,"_95":-5,"_96":-5,"_97":-5,"_98":-5,"_99":-5,"_100":51,"_101":102},"ctx",{"_85":-5,"_131":254,"_255":256,"_257":258,"_259":31,"_260":31,"_261":31,"_262":65,"_263":-5,"_264":-7,"_265":-7,"_266":69,"_267":31,"_268":31,"_269":-5,"_270":31,"_271":31,"_272":31,"_273":-5},"ENV",{"_225":226,"_227":228,"_229":93,"_230":231,"_232":233,"_234":235,"_236":237,"_238":239,"_240":241,"_242":243,"_244":245,"_246":247,"_248":249,"_250":251,"_252":253},"REACT_APP_SENTRY_DSN","https://586020d86f05489db63a554690acf1e9@o1398359.ingest.sentry.io/6724499","RENDER_GIT_COMMIT","e87eb04e707cf64e7e532c8e8ec395f209e17f15","RENDER_GIT_BRANCH","POSTHOG_API_TOKEN","phc_nmoyuAkStEZuUp69rYlg1DZgrIt19Gx0Y4Hwf8tGgJP","POSTHOG_API_HOST","https://wart.val.town","WEB_API_TEMPLATE","https://{val}.web.val.run","APP_URL","https://www.val.town","MODULE_URL","https://esm.town","VANITY_WEB_API_TEMPLATE","https://{label}.val.run/","DENOLS_URL","https://lsp.val.town","NODE_ENV","production","CLOUDFLARE_TURNSTILE_SITE_KEY","0x4AAAAAACtaIZJH7s9rBMZ6","GOOGLE_CLIENT_ID","875989696899-jtsqkhlbdv5jrlsk8631p7ipjg3c6o62.apps.googleusercontent.com","STRIPE_PUBLISHABLE_KEY","pk_live_51N2zvWEpZTTLipIkVEwXrUG9AT0yeOOEYxszarZT1jpsZV58Ly6wlg3SltZpHN26CUalOBmUSY7adQRQiSkCZz2500qSXNkf8Y","API_URL","https://api.val.town",[],"preferencesKeybindings","default","preferencesTheme","light","preferencesFixers","preferencesCopilot","preferencesSelectionAi","preferencesCloseBrackets","preferencesChatPanelState","preferencesDprint","preferencesDenofmt","notificationCount","flagDenols","isBusinessOrgMember","businessOrgHandle","isBusinessOrgAdmin","isHigherTownieTier","navCollapsed","currentOrgId"]

Diff · v9