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js throw error

throw new Error('Whoops!')
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node js throw error

FactoryController.prototype.create = function (callback) {
    //The throw is working, and the exception is returned.
    throw new Error('An error occurred'); //outside callback 
    try {
        this.check(function (check_result) {
            callback(check_result);
        });
    } catch (ex) {
        throw new Error(ex.toString());
    }
}

FactoryController.prototype.create = function (callback) {
    try {
        this.check(function (check_result) {
            //The throw is not working on this case to return the exception to the caller(parent)
            throw new Error('An error occurred'); //inside callback 
        });
    } catch (ex) {
        throw new Error(ex.toString());
    }
}
Comment

how to catch and throw error js

try {
  throw new Error('Whoops!')
} catch (e) {
  console.error(e.name + ': ' + e.message)
}
Comment

throw error with status js

const error = new Error("message")
error.code = "YOUR_STATUS_CODE"
throw error;
Comment

javascript throw new error

throw new Error("Error message here"); // Uncaught Error: Error message here
Comment

javascript throw error inside then

new Promise((resolve, reject) => {
  resolve("ok");
}).then((result) => {
  throw new Error("Whoops!"); // rejects the promise
}).catch(alert); // Error: Whoops!
Comment

js throw new error

throw new Error("message");
Comment

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