{"record":{"id":"a58491ed077d173a","repo":"nosir/cleave.js","slug":"invalid-region-code-a58491","errorCode":null,"errorMessage":"Invalid region code: ","messagePattern":"Invalid region code: ","errorType":"exception","errorClass":"Error","httpStatus":null,"severity":"error","filePath":"src/addons/phone-type-formatter.ly.js","lineNumber":63,"sourceCode":" Copyright (C) 2010 The Libphonenumber Authors.\n\n Licensed under the Apache License, Version 2.0 (the \"License\");\n you may not use this file except in compliance with the License.\n You may obtain a copy of the License at\n\n http://www.apache.org/licenses/LICENSE-2.0\n\n Unless required by applicable law or agreed to in writing, software\n distributed under the License is distributed on an \"AS IS\" BASIS,\n WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n See the License for the specific language governing permissions and\n limitations under the License.\n*/\nfunction M(){this.a={}}M.b=function(){return 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R resolves the region against metadata map L and throws Error('Invalid region code: ' + c) when the metadata prototype cannot be built. The empty code means the formatter ran without a valid 'LY' region.","triggerScenarios":"Calling the bundle-exported formatter with an empty/undefined region argument; the Q constructor invoking R(this, this.D) with an unset region; a country string absent from the bundled metadata (O returns null) triggering the throw.","commonSituations":"Missing defaultCountry in configuration; empty country field on parsed phone records; using the addon bundle standalone without region wiring; stale metadata after library regeneration.","solutions":["Pass 'LY' explicitly as the region when calling the formatter.","Validate the region is a non-empty 2-letter uppercase string before the call.","Default or reject empty region inputs at the validation boundary.","Supply a default country to the parser so the region resolver never receives an empty value.","Regenerate the ly addon so its metadata map contains LY."],"exampleFix":"// before\nconst formatted = formatter(rawNumber); // no region -> Invalid region code: \n// after\nconst formatted = formatter(rawNumber, { country: 'LY' });","handlingStrategy":"validation","validationCode":"function isValidRegion(r) {\n  return typeof r === 'string' && /^[A-Z]{2}$/.test(r.toUpperCase()) && r.trim() !== '';\n}\nif (!isValidRegion(region)) {\n  throw new TypeError(`phone-type-formatter: expected ISO region code, got ${JSON.stringify(region)}`);\n}","typeGuard":"function isRegionCode(v) {\n  return typeof v === 'string' && /^[A-Za-z]{2}$/.test(v);\n}","tryCatchPattern":"let formatted;\ntry {\n  formatted = formatter(number, { country: 'LY' });\n} catch (e) {\n  if (/Invalid region code/.test(e.message)) {\n    formatted = null;\n  } else {\n    throw e;\n  }\n}","preventionTips":["Always pass an explicit ISO 3166-1 alpha-2 region to the formatter.","Validate/normalize country inputs (trim + toUpperCase) at the API boundary.","Default missing region config to a known-good value and log a warning.","Add a unit test that formats one number per supported region to catch missing metadata early.","Keep the addon bundles regenerated from the same libphonenumber version as the core library."],"tags":["phone-number","invalid-region-code","libphonenumber"],"backgroundTag":"invalid-region-code","analyzedSha":"a966c95cf5193f223485a10eec8405bb32b8f6dd","analyzedAt":"2026-09-02T23:44:35.488Z","contentChangedAt":null,"schemaVersion":2},"datasetVersion":"2026-09-10T02:17:09.455Z"}