What is the best way to maintain the correct 'this' context for a function that is outside of the Vue

I'm struggling with my Vue component and encountering some errors.

<script lang="ts">
import Vue from 'vue';
import { ElForm } from 'element-ui/types/form';

type Validator = (
  this: typeof PasswordReset,
  rule: any,
  value: any,
  callback: (error?: Error) => void
) => void;

const validatePass1: Validator = function(rule, value, callback) {
  if (value && this.form.passwordConfirm) {
    (this.$refs.form as ElForm).validateField('passwordConfirm', valid => {});
  }
};

const PasswordReset = Vue.extend({
  // ...

The validatePass1 function is showing errors related to this.form and this.$refs:

"Property 'form' does not exist on type 'VueConstructor<{ form: { password: string; passwordConfirm: string; }; rules: { password: ({ requ...'."

"Property '$refs' does not exist on type 'VueConstructor<{ form: { password: string; passwordConfirm: string; }; rules: { password: ({ requ...'."

How can I make this function recognize the references, properties, or data attached to my component?

Answer №1

To set up Vue globally, follow these steps:

window.vm = new Vue ({...});

After setup, you can easily reference it in your TypeScript file by using the following code:

window.vm.$refs.form

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