[ERR]:"An error occurred:","Unexpected token 'i', "invalidJSON" is not valid JSON"[LOG]:"Cleanup after try-catch" To catch specific types of errors, we use the ‘instanceof‘ operator within thecatchblock. Here’s an example of catching specific error types. Note that the error types...
Port ' + port; // handle specific listen errors with friendly messages switch(error.code) { case 'EACCES': console.error(bind + ' requires elevated privileges'); process.exit(1) break; case 'EADDRINUSE': consoleerror(bind + ' is already in use'); process.exit(1; break; ...
.env.development.local, .env.test.local, .env.production.local: Local overrides of environment-specific settings. Files on the left have more priority than files on the right: npm start: .env.development.local, .env.development, .env.local, .env npm run build: .env.production.local, .env...
Due to a bug, TypeScript missed specific cases in ambient contexts, like in declaration files or declare module blocks. For example, it would not issue an error on a case like the following, where replaceInFile is declared once as an exported function, and one as an un-exported namespace...
Consider installing a specific version of this library to resolve the conflict. 4091 错误 Parameter '{0}' of index signature from exported interface has or is using name '{1}' from private module '{2}'. 4092 错误 Parameter '{0}' of index signature from exported interface has or is ...
But when you run this through a program likenodethat expects JavaScript, you’ll get an error: function greet(who: string) { ^ SyntaxError: Unexpected token : The: stringis a type annotation that is specific to TypeScript. Once you use one, you’ve gone beyond plain JavaScript (seeFigure...
2492 错误 Cannot redeclare identifier '{0}' in catch clause 无法在 catch 子句中重新声明标识符“{0}” 2493 错误 Tuple type '{0}' with length '{1}' cannot be assigned to tuple with length '{2}'. 不能将长度为“{1}”的元组类型“{0}”分配给长度为“{2}”的元组。
TypeScript will catch that and immediately will outline the error: TypeScript has caught an error in Sublime Edit TypeScript-compatible IDEs like VisualStudio, Sublime Edit (shown in the screenshot above), or Atom will outline error as well as provide a description for the property so that yo...
This allows an API to talk about specific types, even if API consumers can’t actually refer to these types by name. Our bundler cannot emit unexported types, but can detect when it needs to be done, and issues an error indicating that the type must be exported. This is a fine trade-...
let text = getLocaleSpecificMessage(message); if (arguments.length > 4) { text = formatStringFromArgs(text, arguments, 4); } return { file, start, length, messageText: text, category: message.category, code: message.code, reportsUnnecessary: message.reportsUnnecessary, ...