Is it necessary to implement Vuex with Vue Js in this situation?

Currently taking part in Vue.js mini workshops, where I am working with two components named PersonCard and ColorPick, along with a dataset. Each person in the dataset can have their own personalized PersonCard, complete with a color picker (radio buttons). However, I am facing difficulty in retrieving the 'Picked Color' from the ColorPick component back to the PersonCard component for use in styling via style binding. Despite trying to utilize $emit, I have not been successful. Any guidance or suggestions would be greatly appreciated.

I understand that directly accessing and updating updatedPlayers.color may not work as expected since updatedPlayers is an array being iterated over in the template. How can I specify the individual 'player' within updatedPlayers to update their color based on the $emit event?

App.vue


    <template>
  <div>
    <PersonCard :players="players"></PersonCard>
  </div>
</template>

<script>

import PersonCard from './components/PersonCard.vue'

  export default {
    components: {
      PersonCard
    },
    data () {
      return {
        players: [
        {
        id: 1,
        name: "Daniel",
        age: 33,
        color:"red"
        },
        {
        id: 2,
        name: "Sam",
        age: 21,
        color: "green"
        }
        ]
      }
    }

  };
</script>

<style scoped>

</style>

PersonCard.vue

<template>
  <div>
      <li  v-for="player in updatedPlayers" :key="player.id">
          <h4 :style="{backgroundColor: player.color}">{{player.name}}</h4>
          <ColorPick @colorChosen="newColor"></ColorPick>
      </li>
  </div>
</template>

<script>

import ColorPick from './ColorPick.vue'

export default {
data () {
    return {
        pickedColor: '',
        updatedPlayers : this.Players
    }
},
props: ['Players'],
components: {
    ColorPick
},
methods: {
    newColor (newColor) {
        this.updatedPlayers.color = newColor;
    }
}

};
</script>

<style scoped>
li {
    list-style: none !important;
}
</style>

ColorPick.vue

<template>
  <div>
    <form action>
      <input type="radio" name="nameColor" value="yellow" v-model="pickedColor" @change="colorChosen" /> Yellow
      <br />
      <input type="radio" name="nameColor" value="red" v-model="pickedColor" @change="colorChosen" /> Red
      <br />
      <input type="radio" name="nameColor" value="blue" v-model="pickedColor" @change="colorChosen" /> Blue
    </form>
  </div>
</template>

<script>
export default {
  data() {
    return {
      pickedColor: "",
    };
  },
  methods: {
      colorChosen(pickedColor) {
         this.$emit ('newColor', pickedColor);
      }
  }
};
</script>

<style>
</style>

Answer №1

Frankly speaking, when dealing with a simple hierarchy of two components, Vuex may not be necessary. It is more about understanding how your components interact with each other.

If a PlayerCard component has a child ColorPicker component, it makes sense for the ColorPicker component to emit an event containing the selected color. The parent PlayerCard component can then listen for this event and update its bindings accordingly:

<!-- /components/PlayerCard.vue -->
<template>
    <div v-bind:style="{ 'background-color': this.backgroundColor }">
        <color-picker v-bind:value="backgroundColor" v-on:input="updateBackgroundColor" />
    </div>
</template>

<script>
    export default {
        components: {
            ColorPicker
        },
        data() {
            return {
                backgroundColor: '#000' // default
            };
        },
        methods: {
            updateBackgroundColor(event) {
                this.backgroundColor = event.target.value;
            }
        }
    }
</script>

<!-- /components/ColorPicker.vue -->
<template>
    <div>
        <input type="color" v-on:input="onInput" v-bind:value="value" />
    </div>
</template>

<script>
    export default {
        methods: {
            onInput(event) {
                this.$emit('input', event);
            }
        },
        props: {
            value: {
                required: true,
                type: String
            }
        }
    }
</script>

In this setup, the ColorPicker and PlayerCard components are independent. When a user selects a color in the ColorPicker, it triggers an input event that gets passed up to the PlayerCard which then updates the background color accordingly.

The beauty of the ColorPicker component lies in its simplicity—it only handles color selection without any knowledge of where it's being used. This reusability allows it to be easily integrated for selecting other colors such as text color within the PlayerCard component.

Essentially, well-written Vue components can address most requirements without needing Vuex. While Vuex simplifies handling certain complexities, it is more suited for larger applications where component interaction becomes intricate.

Answer №2

Upon reviewing your code, I noticed that the event listener is set to @colorChosen in PersonCard.vue, but you are emitting "newColor". It might be beneficial to change it to @newColor in PersonCard.vue and see if that resolves the issue.

<ColorPick @newColor="newColor"></ColorPick>

Additionally, using Vuex can simplify the process of passing state between components. As your application grows, managing all the emits can become challenging, so leveraging Vuex can help streamline this process.

Similar questions

If you have not found the answer to your question or you are interested in this topic, then look at other similar questions below or use the search

Flask and Ajax make it easy to work with multiple datatables that are connected to

Currently, I am working with 2 datatables in my project. The first one is populated using the following code snippet: {% block scripts %} <script> $(document).ready(function () { $('#data').DataTable({ ajax: '/api/dat ...

What are effective ways to work around the CORS policy while making get/post requests from within React JS?

My React JS application is encountering an issue with CORS policy while trying to fetch data from servers in other domains. Despite using http-proxy-middleware and setting up the necessary proxy, I am still unable to make successful get/post calls to the e ...

Transforming a JavaScript variable into a PHP variable

Is there a way to convert a JavaScript variable obtained from videoel.getCurrentTime function into a PHP variable, so that it can be included in an SQL Insert Query like INSERT INTO tblData VALUES ('$phpVarFromJavascript')? ...

Is there a way to use Ajax for updating data in a javascript chart?

I am currently utilizing the Highchart API for chart display purposes. This API offers a variety of chart types for users to choose from via a dropdown menu, enabling them to make an ajax request and update the chart partially. The advantage is that I can ...

Access the plugin object from a Vue.js 2 component using typescript

I devised a plugin object to handle the regular expressions used in my application in a more global manner. Here's an example of how it looks: import Vue from "vue"; Vue.prototype.$regex = { //isEmail function implementation goes here } ...

"Encountering an unidentified custom element in Vue 2 while exploring Vue libraries

In my Vue project, I have integrated libraries like FusionCharts and VueProgressBar. However, I encountered an error in my console: Unknown custom element: <vue-progress-bar> - did you register the component correctly? For recursive components, make ...

How to properly handle Angular routing errors and best practices?

Currently, I have been delving into learning Angular to integrate with my Ruby on Rails application. However, I have encountered some challenges specifically related to routing. Here is a snippet from my app.routing file: import { NgModule } from '@ ...

Fetching external data in a Cordova application from a remote server

I have encountered multiple questions similar to mine, but none of them have been able to solve my issue. Currently, I am developing a Cordova app for testing on Android and iOS platforms. My goal is to retrieve data in JSON format from my webserver using ...

Observing a profound watch object results in an ESLint warning

I am working with an object called date and I want to monitor any changes that occur within this object. However, I keep receiving a warning message stating: Unexpected unnamed method 'date.fontsize' func-names. How can I resolve this issue? He ...

Retrieving and storing successful response data in Angular JS using the $http service caching

My dataFactory is set up to retrieve posts in a simple manner: dataFactory.getPosts = function () { if (this.httpPostsData == null) { this.httpPostsData = $http.get("http://localhost/matImms/wp-json/posts?type=journey&filter[posts_per_page ...

Unable to locate the request in Angular's HTTP testing

Facing an issue with my Jasmine test that involves mocking a HTTP request. The error I'm encountering is: Failed: Expected one matching request for criteria "Match URL: https://myurl.net/api/v2/OperationalAreas/1/Equipments?PageNumber=1&PageSize= ...

A guide to displaying PDF content within a React.js application

For a specific scenario, I need to fetch PDF content using axios.get and then display it on the UI. In my setup, React.js is used for the front end and Express.js serves as the backend. Due to restrictions, the front end React app cannot directly call th ...

Expand the table in the initial state by using CSS to collapse the tree

I am struggling to collapse the tree view and need assistance. Below is the code snippet I've added. My goal is to have each node in the tree view initially collapsed and then expand a particular node on user interaction. For example, when I execute ...

I am currently studying JavaScript. The syntax of my if statement with && appears to be accurate, however

I'm having trouble with the logic in my "Code your Own Adventure" program on Code Academy. I expect it to display "Great, come get your pizza!" when I enter PIZZA, YES, and YES as prompts, but instead it says "NO pizza for you!" I've tried using ...

In Safari, the scrollbar appears on top of any overlays, popups, and modals

On my webpage, I have a div with the CSS property overflow-y: scroll. The page also features several popup modals and overlays. Strangely, the scrollbar of the div appears on top of these overlays instead of behind them. I attempted to resolve this issue b ...

Can we trust the accuracy of the official type definition for JSON.stringify?

Upon reviewing the official type definition for JSON.stringify, it appears that it states JSON.stringify always returns a string, even when passed undefined. interface JSON { stringify(value: any, /*...*/): undefined; } However, executing JSON.stringif ...

Utilize React JS to parse and display a sophisticated JSON structure in a dropdown menu

Looking at the backend data structure provided, we have information on various courses in different departments. { "courseDetails" : [{"departmentId" : 105654, "courses" : [{"stream" : "science","courseIds" : ["104","105 ...

Sending a two-dimensional array through an HTML form field using JavaScript

Prior to reading: Please note that if you are only interested in answering the question, you can skip ahead to "The Question" at the end of this post. My current project involves developing a feature for a website that enables users to upload and share pr ...

Using HTML to design interactive buttons that can send API requests and display their current status

Seeking assistance with creating buttons to control a remote light's ON and OFF states while reflecting their status as well. The specific http API calls for the light are necessary to toggle its state. Turn On = http://192.168.102.22:3480/data_requ ...

What is the best way to modify an object within a pure function in JavaScript?

Currently, I am exploring different strategies to ensure that a function remains pure while depending on object updates. Would creating a deep copy be the only solution? I understand that questions regarding object copying are quite common here. However, ...