how to create a global variable in vue

1. Open your Vue.js project.

2. Inside the src folder, locate or create a file named main.js.

3. In the main.js file, import Vue and create a new Vue instance.

import Vue from 'vue';
import App from './App.vue';

1. Declare a global variable using the Vue prototype.

Vue.prototype.$globalVariable = 'YourValue';

Replace 'YourValue' with the desired initial value of your global variable.

1. Mount the Vue instance.

new Vue({
  render: h => h(App),
}).$mount('#app');

1. Access the global variable in any component.

export default {
  name: 'YourComponent',
  mounted() {
    console.log(this.$globalVariable);
  },
};

Now, you can use $globalVariable across different components in your Vue.js project.