Tengo un objeto que es propiedad son matrices de objetos:
messages = { authentication: [ { type: 'signinFail', message: 'Login Fail! Wrong password or email.' } ], requiredText: [ { type: 'required', message: 'This field is required.' } ], email: [ { type: 'required', message: 'Email is required.' }, { type: 'email', message: 'Email has an incorrect format.' } ], confirm_password: [ { type: 'required', message: 'Password confirmation is required.' }, { type: 'areNotEqual', message: 'Password mismatch' } ], password: [ { type: 'required', message: 'Password is required' }, { type: 'minlength', message: 'Password must contain 5 or more characters.' }, { type: 'pattern', message: 'Your password must contain at least one uppercase, one lowercase, and one number' } ] };Necesito obtener un masaje de la estructura anterior mientras proporciono dos cadenas, sujeto y tipo para la función que creé:
getMessage(subject, type) : string { return this.messages[subject][type]; }Por ejemplo, si proporciono:
subject = "confirm_password" type = "minlength"Espero recibir este mensaje de la función getMessage:
'Password must contain 5 or more characters.'pero me sale un error indefinido.
¿Alguna idea de cómo obtener el mensaje deseado si proporciono el asunto y el tipo?
Debe buscar la entrada correcta en su matriz usando .find() . Devuelven la propiedad .message del elemento de matriz encontrado:
const messages = { authentication: [ { type: 'signinFail', message: 'Login Fail! Wrong password or email.' } ], requiredText: [ { type: 'required', message: 'This field is required.' } ], email: [ { type: 'required', message: 'Email is required.' }, { type: 'email', message: 'Email has an incorrect format.' } ], confirm_password: [ { type: 'required', message: 'Password confirmation is required.' }, { type: 'areNotEqual', message: 'Password mismatch' } ], password: [ { type: 'required', message: 'Password is required' }, { type: 'minlength', message: 'Password must contain 5 or more characters.' }, { type: 'pattern', message: 'Your password must contain at least one uppercase, one lowercase, and one number' } ], getMessage: function(subject,type){return this[subject].find(el=>el.type==type).message} }; function getMessage(subject, type){ return messages[subject].find(el=>el.type==type).message; } console.log(getMessage("password","minlength")); // function call console.log(messages.getMessage("password","minlength")); // method call of messages