utilizing global definitions within Vue.js can lead to compatibility issues

Attempting to import and globally define a library has been challenging for me. Despite my efforts, the global variable is not being recognized.

In main.js,

import Vue from 'vue'
import App from './App'
import router from './router'
import VueJwtDecode from 'vue-jwt-decode'

Vue.config.productionTip = false
Vue.use(VueJwtDecode)

/* eslint-disable no-new */
new Vue({
  el: '#app',
  router,
  components: { App },
  template: '<App/>'
})

In Signup.vue,

...
const payload = VueJwtDecode.decode(res.jwt);
...

The error message indicates that VueJwtDecode is undefined.

Answer №1

When utilizing the named reference of VueJwtDecode, it is necessary to reimport the library in your Signup.vue component as Signup.vue does not recognize what VueJwtDecode refers to.

import VueJwtDecode from 'vue-jwt-decode'
const payload = VueJwtDecode.decode(res.jwt);

Nevertheless, if you have globally installed the library, it has been added to the Vue instance, making it accessible from the this context within your component. This means you can also access it from the component context without reimporting:

const payload = this.$jwtDec(res.jwt);

Answer №2

When incorporating the documentation into your component, make sure to utilize

this.$jwtDec(res.jwt)

in place of

VueJwtDecode.decode(res.jwt);

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