Error with jquery array syntax

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I didn’t put all the code to not pollute the text and the doubt is about the syntax below:

I have 2 table html (tblPerguntas e tblRespostas) e preciso percorrer estas duas Tables e enviar para a Controller via Ajax; 

   var iP = 0;
    var iR = 0;
    var tblPerguntas = $("#tblPerguntas > tbody");
    var tblRespostas = $("#tblRespostas > tbody");

    var Questionario = {
        "Id_Questionario": 1,
        "Nome_Questionario": "Pesquisa Domicilio",
        "Perguntas": []
    };

    tblPerguntas.find("tr").each(function () {
        Questionario.Perguntas.push({
            "Id_Pergunta": 1,
            "Id_Questionario": 1,
            "Pergunta": "Você tem TV a cores?",
            "Respostas": []
        });        
    });

    tblRespostas.find("tr").each(function () {
        Questionario.Perguntas.Respostas.push({
            "Id_Resposta": 1,
            "Resposta": "Sim Tenho 1 geladeira"
        });
    });

The question is about the push.

This error occurs: Uncaught TypeError: Cannot read property 'push' of undefined.

I believe syntax is wrong, if the syntax is the correct form ?

html jquery ajax

  • You defined Questionario.Perguntas as a array, then he does not possess the attribute Respostas. What has this attribute are the values of Questionario.Perguntas, that could be accessed by the index, Questionario.Perguntas[0].Respostas

  • Thank you @Andersoncarloswoss ! Would that be ?: var index = 0; tblResposts.find("tr"). each(Function() { Quiz.Questions[index].Respostas.Id_answer = 1, Quiz.Questions[index].Respostas.Answer = "Yes I have 1 refrigerator"; index++; });var index = 0; tblRespotures.find("tr"). each(Function() { Quiz.Questions[index].Respostas.Id_answer = 1, Quiz.Questions[index].Respostas.Answer = "Yes I have 1 refrigerator"; index++; });` , nothing happened.

1 answer

3


Take the first argument from the function of .each, which returns the index based on 0, place between brackets after Perguntas of the second .each:

tblRespostas.find("tr").each(function (i) {
  Questionario.Perguntas[i].Respostas.push({
      "Id_Resposta": 1,
      "Resposta": "Sim Tenho 1 geladeira"
  });
});

Note that the first argument of the function, represented by the variable i, returns the indexes of each tr table.

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