Ways to access the props value within the lifecycle hooks of Vue JS

Is there a way to retrieve the value of props using lifecycle hooks such as mounted or updated, and then store that value in my v-model with additional text? I've been struggling to achieve this.

I attempted using :value on the input element with both the props value and some string, and it did work. However, it appears that I cannot access it without using v-model. From my research, it seems like you can't use both v-model and :value simultaneously.

The goal is to obtain the combined value (from props and extra strings) from the input tags.

Parent Component

<invite :user_token="user_token"/>

Child Component

export default {
    props: ['user_token'],

    data() {
        return {
            link: ''
        }
    },

    mounted() {
        console.log(this.user_token);
        this.link = `"http://localhost/johndoe-vue/public/#/invite${this.user_token}"`;
    },
    updated() {
        console.log(this.user_token);
        this.link = `"http://localhost/johndoe-vue/public/#/invite${this.user_token}"`;
    }
}

Answer №1

Hello there, Nigel!

Are you in search of something similar to this setup?

MainComponent.vue

<template>
    <div id="wrapper">
        <invite :userToken="userToken"></invite>
    </div>
</div>
<script>
import Invite from "@/Invite.vue";
export default {
    components: {
        Invite
    },
    data() {
        return {
            userToken: "fooBar",
        };
    }
}
</script>

SubComponent.vue

<template>
    <div id="wrapper">
        <p v-if="inviteLink != ''">{{ inviteLink }}</p>
    </div>
</template>
export default {
    props: {
        userToken: {
            type: String,
        }
    },

    data() {
        return {
            inviteLink: ""
        }
    },

    created() {
        if(this.userToken != "") {
            this.inviteLink == "/your-link-here/"+this.userToken;
        }
    }

}

By the way, be sure to take a look at the Vue.js Style Guide. They emphasize using multi-word component names. Consider renaming your Invite component to BaseInvite or something similar.

Answer №2

Have you attempted to $broadcast this.path

Answer №3

Accessing props in Vue can be done through the $props property of your component. To access a specific prop, you would use this.$props.[property name]. Each instance property like $props can be accessed this way. For more details, refer to https://v2.vuejs.org/v2/api/#Instance-Properties

It's important to note that the Vue life cycle methods may vary in terms of accessibility of instance properties. Depending on the method being used, certain instance properties may not be accessible (e.g. referencing $el in created(...)). Check out the Vue lifecycle diagram for more information: https://v2.vuejs.org/v2/guide/instance.html#Lifecycle-Diagram

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