JarCastingGeneraterr
Generates custom and valid node.js error functions for node.js.
Installation
npm install generaterr --save
Usage
Basis Usage
var ParseError = generaterr('ParseError');
try
{
throw new ParseError('Could not parse file due to missing semicolons');
} catch(e) {
console.log(e.message);
console.log(e.name);
console.log(e.stack);
}
Formatting messages
var ParseError = generaterr('ParseError');
try
{
throw new ParseError('Could not parse file "%s" due to missing semicolons at line %d:%d', 'input.js', 10, 12);
} catch(e) {
// Message: 'Could not parse file "input.js" due to missing semicolons at line 10:12'
}
Generator Arguments
var NotFoundError = generaterr('NotFoundError', { status : 404 });
var notFoundError = new NotFoundError('Could find resource /api/random/numbers');
console.log(notFoundError.status);
// Prints '404'
Constructor Arguments
var ParseError = generaterr('ParseError');
var err = new ParseError('Could not parse file "%s" due to missing semicolons at line %d:%d', 'input.js', 10, 12, { status : 'FATAL' });
console.log(err.message)
// Prints 'Could not parse file "input.js" due to missing semicolons at line 10:12'
console.log(err.status)
// Prints 'FATAL'
Options
captureStackTrace, defaults to 'true'
Turning off stack trace generation may be useful for business logic exceptions that do not require a stack trace.
var ParseError = generaterr('ParseError', null, { captureStackTrace : false });