JAVASCRIPT

js throw error

throw new Error('Whoops!')

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());
    }
}

how to catch and throw error js

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

throw error with status js

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

throw new error(

try {
  throw "I'm Md Abdur Rakib"
  console.log("You'll never reach to me", 123465)
} catch (e) {
  console.log(e); // I'm Md Abdur Rakib
}

throw new error(

try {
  throw new Error('yoooooooo!')
} catch (e) {
  console.error(e)
}

throw new error(

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

javascript throw new error

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

javascript throw error inside then

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

throw new error(

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

throw new error(

try {
  throw "I'm Evil"
  console.log("You'll never reach to me", 123465)
} catch (e) {
  console.log(e); // I'm Evil
}

throw new error(

throw new Exception("Error here");

js throw new error

throw new Error("message");

javascript syntax of throw statement

try {
    // body of try
    throw exception;
} 
catch(error) {
    // body of catch  
}

throw new error(

Error Name          Description

EvalError           An error in the eval() function has occurred.

RangeError          Out of range number value has occurred.

ReferenceError      An illegal reference has occurred.

SyntaxError         A syntax error within code inside the eval() function has occurred.
                    All other syntax errors are not caught by try/catch/finally, and will
                    trigger the default browser error message associated with the error. 
                    To catch actual syntax errors, you may use the onerror event.

TypeError           An error in the expected variable type has occurred.

URIError            An error when encoding or decoding the URI has occurred 
                   (ie: when calling encodeURI()).

JavaScript throw statement

throw expression;

throw new error(

throw new Error('Whoops!')

throw new error(

throw new Error("Your error message");

throw new error(

# :::::: - AGREAGAR SUDO, EN CENTOS 7 SERVER - :::::

#creamos el usuario 
adduser junior
#creamos el pasword
passwd junior123
#agregamos el permiso de SUDO AL usuario "junior"
usermod -aG wheel junior

throw new error(

try {
    //something that causes an error
} catch (ex){
    if (ex instanceof TypeError){
        //handle the error
    } else if (ex instanceof ReferenceError){
        //handle the error
    } else {
        //handle all others
    }
}