Javascript 如何使用reactjs在json中设置数组名

我在构造函数中设置了一个空数组，如下所示

this.state = {
      formData: [],
}

addFormData() {

    const {formQuestion,formName} = this.props;

    const formRawData = {
      'question': formQuestion,
      'type': this.state.qtype,
    }


    this.state.formData.push(formRawData);


  }

formName : [ 
    0: {question: "ABC", type: "star"}
    1: {question: "ABC", type: "star"}
]

当用户点击像这样的按钮时，我会按一些数据

this.state = {
      formData: [],
}

addFormData() {

    const {formQuestion,formName} = this.props;

    const formRawData = {
      'question': formQuestion,
      'type': this.state.qtype,
    }


    this.state.formData.push(formRawData);


  }

formName : [ 
    0: {question: "ABC", type: "star"}
    1: {question: "ABC", type: "star"}
]

通过这个，我得到了一个类似于formData的结果

[ 
0: {question: "ABC", type: "star"}
1: {question: "ABC", type: "star"}
]

如何像这样将数组名（

formName

）设置为我的数组

this.state = {
      formData: [],
}

addFormData() {

    const {formQuestion,formName} = this.props;

    const formRawData = {
      'question': formQuestion,
      'type': this.state.qtype,
    }


    this.state.formData.push(formRawData);


  }

formName : [ 
    0: {question: "ABC", type: "star"}
    1: {question: "ABC", type: "star"}
]

---

This

This.state.formData.push（formRawData）不应该这样做。你正试图改变这种状态。这就是setState的作用

我想你在找这样的东西

this.state = {
      formData: { formName:  []},
}

尝试使用
setState
函数添加数据，如：

setState({   
    formData:formRawData
})

您的意思是希望
formData
是一个对象（属性为
formName
），而不是一个数组？this.state={formData:{}，}；this.state.formData[formName].push（formRawData）；