<el-form-item
    v-for="(domain, index) in dynamicValidateForm.domains"
    :label=""" + index"
    :key="domain.key"
    :prop=""domains." + index + ".value""
    :rules="{
      required: true, message: "", trigger: "blur"
    }"
  >
    <el-input v-model="domain.value"></el-input><el-button @click.prevent="removeDomain(domain)"></el-button>
  </el-form-item>doubts:
:prop=""domains." + index + ".value""Why is" domains.+index+.value" instead of "dynamicValidateForm.domains+index+.value" or" domain.value"?
in prop?