Beware of potential infinite update loops when using a basic toggle function in Vue.js

I have been researching the issue of infinite update loops, but I am still struggling to grasp the concept.

Despite my efforts, I keep encountering the following error message:

[Vue warn]: You may have an infinite update loop in a component render function.

Can someone explain the correct way to implement a simple toggle function in Vue? It seems like my current approach is not working as intended.

<template>
    <v-content>
      <v-container fluid fill-height>
        <v-layout align-center justify-center>
            <v-btn
                color="normal"
                :click="toggleLogin()"
                >
                {{login ? "Register" : "Login"}}
            </v-btn>
        </v-layout>
      </v-container>
    </v-content>
</template>

<script>
export default {
    data: () => ({
        login: true
    }),
    methods: {
        toggleLogin: function() {
            console.log(this.login)
            this.login = !this.login
        }
    }
}

</script>

Answer №1

Consider updating the data binding structure:

:click="toggleLogin()"

to utilize event handling instead:

@click="toggleLogin()"

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