this.resetForm("form");有index of错误

当你看到 `this.resetForm("form")` 中抛出 "index out of range" 或 "index of" 的错误，这通常发生在JavaScript中尝试访问数组元素但提供的索引超出数组长度的情况下。`resetForm` 函数看起来是在处理某个表单相关的操作，并期望找到名为 "form" 的组件，可能是通过DOM查找或者数组查找。

如果这个函数内部有一个涉及到 `indexOf` 或者类似查找的地方，比如查找某个字段或者元素的索引，而传入的 "form" 并不是一个有效的索引或不是数组成员，就会触发这个错误。例如：

let elements = document.getElementsByClassName('form'); // 这里假设 'elements' 是一个HTMLCollection，而不是数组

// 如果你想查找 index：
const formIndex = elements.indexOf('form');
if (formIndex !== -1) {
  this.resetForm(formIndex); // 如果 'form' 不是 'elements' 中的元素，就会报错
} else {
  console.error('No form element found with the given name.');
}

相关问题

getDiscussList(page) { this.$http.get('discussjinrishici/list', {params: {page, limit: this.pageSize, refid: this.detail.id}}).then(res => { if (res.data.code == 0) { this.infoList = res.data.data.list; this.total = res.data.data.total; this.pageSize = res.data.data.pageSize;this.pageSizes = [this.pageSize, this.pageSize*2, this.pageSize*3, this.pageSize*5]; this.totalPage = res.data.data.totalPage; } }); }, submitForm(formName) { let sensitiveWords = ""; let sensitiveWordsArr = []; if(sensitiveWords) { sensitiveWordsArr = sensitiveWords.split(","); } for(var i=0; i<sensitiveWordsArr.length; i++){ //全局替换 var reg = new RegExp(sensitiveWordsArr[i],"g"); //判断内容中是否包括敏感词 if (this.form.content.indexOf(sensitiveWordsArr[i]) > -1) { // 将敏感词替换为 ** this.form.content = this.form.content.replace(reg,"**"); } } this.$refs[formName].validate((valid) => { if (valid) { this.form.refid = this.detail.id; this.form.avatarurl = localStorage.getItem('headportrait')?localStorage.getItem('headportrait'):''; this.$http.post('discussjinrishici/add', this.form).then(res => { if (res.data.code == 0) { this.form.content = ''; this.getDiscussList(1); this.$message({ type: 'success', message: '评论成功!', duration: 1500, }); } }); } else { return false; } }); }, resetForm(formName) { this.$refs[formName].resetFields(); }, }, components: { CountDown } } </script>

这是一个Vue.js组件，包含了获取评论列表、提交评论表单、重置表单等功能。在获取评论列表时，通过发送GET请求获取指定页数的评论列表，并将数据赋值给组件的infoList、total、pageSize、totalPage等变量。在提交评论表单时，先检测评论内容中是否包含敏感词汇，如果有则将敏感词替换为**，然后通过POST请求将评论数据提交至服务器，并在返回结果为成功时，清空评论内容并重新获取评论列表。组件还包含了一个名为CountDown的子组件。

this.$refs.formValidate.resetFields() Cannot read properties of undefined (reading 'indexOf')

The error message "Cannot read properties of undefined (reading 'indexOf')" usually occurs when you are trying to access a property or invoke a method on an undefined value. In this case, it seems like you are trying to reset fields using `this.$refs.formValidate.resetFields()`, but `formValidate` is undefined.

To fix this issue, make sure that you have defined `formValidate` and it is properly assigned to the form reference using `ref` attribute in your template. Here's an example of how you can define and use `formValidate`:

In your template:

<template>
  <el-form ref="formValidate" :model="formData" :rules="formRules">
    <!-- form fields -->
  </el-form>
</template>

In your component's script:

<script>
export default {
  data() {
    return {
      formData: {}, // initialize form data object
      formRules: {}, // define form validation rules
    }
  },
  methods: {
    resetForm() {
      // make sure that this.$refs.formValidate is defined
      if (this.$refs.formValidate) {
        this.$refs.formValidate.resetFields();
      }
    }
  },
}
</script>

By following this pattern, you should be able to resolve the error and reset the form fields successfully.