如何在JavaScript对象的深度编辑特定值?

我在节点中有以下javascript对象:

that.responseData = {
    fields: {
        id: {
            label: 'ID',
            value: objectRecord.id,
            info: '',
            example: '',
            required: false,
            errorStatus: '',
            errorMessage: ''
        },
        title: {
            label: 'Title',
            value: objectRecord.title,
            info: '',
            example: 'The Best of C#',
            required: true,
            errorStatus: '',
            errorMessage: ''
        }
    }
}

我希望能够轻松地改变,例如 errorMessage 指某一领域,例如:

this.setDataInFields('title', 'errorMessage', 'Title is required.'); 

执行此操作的语法是什么,例如,如果我有此函数:

setDataInFields(idCode, property, value) {
    this.responseData.fields.author.errorMessage = 'changed'; // this works

    //this.responseData[idCode][property] = value; //doesn't work

    //this.responseData.fields = { //doesn't work
    //  [property]: value
    //};

    //this.responseData.fields[idCode][property]['errorMessage'] = value; // doesn't work
}