What is the best way to bring JavaScript code from one component to another in React?

Question

What is the best way to bring JavaScript code from one component to another in React?

I am currently working on a mini shop app using VueJS without a backend, focusing on adding items to the shopping cart only.

Within Component One (Nmdgrey.vue), I have boots along with an "Add to Cart" button.

<button @click="addToCart">Add to cart</button>

The function in the first component looks like this:

methods: {
  addToCart() {
    const boots = { name: 'adidas nmd' };
    this.cart.push(boots);
  }
}

Additionally, I have Component Two which displays the shopping cart.

<div v-for="item in cart">
  {{item.name}}
</div>

In JavaScript:

import Nmdgrey from '@/components/Nmdgrey.vue';
export default {
  name: 'Shoppingcart',
  components: 
    Nmdgrey,
  data() {
    return {
      cart: [
        { name: 'adidas adizero' },
      ]
    }
  },
 };

How can I add boots from Component One to the list in Component Two?

Even though I used this.cart.push(boots); in Component One, it didn't work as expected.

Here is what I want, but unfortunately, the button doesn't work: codesandbox

javascript vue.js vuejs2 vue-component

Answer 1

Answer №1

Utilize $emit to enable communication from child components to parent components.

For more information, please see the official documentation: Listening-to-Child-Components-Events

Nmdgrey.vue

<template>
  <div>
    <!-- component 1 -->
    <button @click="add">Add to cart</button>
  </div>
</template>

<script>
export default {
  name: "Numdgrey",
  methods: {
    add() {
      const boots = { name: "adidas nmd" };
      this.$emit("add", boots);
    }
  }
};
</script>

Shoppingcart.vue

<template>
  <div>
    <!-- component 2 -->
    <nmdgrey @add="addCart"></nmdgrey>
    <br>
    <div v-for="(item, index) in cart" :key="index">{{item.name}}</div>
  </div>
</template>

<script>
import Nmdgrey from "./Nmdgrey.vue";
export default {
  name: "ShoppingCart",
  components: {
    Nmdgrey
  },
  data() {
    return {
      cart: [{ name: "adidas adizero" }]
    };
  },
  methods: {
    addCart(good) {
      this.cart.push(good);
    }
  }
};
</script>

Codesandbox demo : https://codesandbox.io/s/z2qz6oy8yp

Answer 2

Utilize $emit to enable communication from child components to parent components.

For more information, please see the official documentation: Listening-to-Child-Components-Events

Nmdgrey.vue

<template>
  <div>
    <!-- component 1 -->
    <button @click="add">Add to cart</button>
  </div>
</template>

<script>
export default {
  name: "Numdgrey",
  methods: {
    add() {
      const boots = { name: "adidas nmd" };
      this.$emit("add", boots);
    }
  }
};
</script>

Shoppingcart.vue

<template>
  <div>
    <!-- component 2 -->
    <nmdgrey @add="addCart"></nmdgrey>
    <br>
    <div v-for="(item, index) in cart" :key="index">{{item.name}}</div>
  </div>
</template>

<script>
import Nmdgrey from "./Nmdgrey.vue";
export default {
  name: "ShoppingCart",
  components: {
    Nmdgrey
  },
  data() {
    return {
      cart: [{ name: "adidas adizero" }]
    };
  },
  methods: {
    addCart(good) {
      this.cart.push(good);
    }
  }
};
</script>

Codesandbox demo : https://codesandbox.io/s/z2qz6oy8yp

Answer 3

Answer №2

Based on your question, it seems like you are interested in sharing data between multiple Vue components. One solution for this is to implement Vuex, a tool that offers centralized state management.

By utilizing Vuex, you can create mutations to add items to a cart that can be accessed by any component. Additionally, you can retrieve cart data from any component using Vuex getters.

Answer 4

Based on your question, it seems like you are interested in sharing data between multiple Vue components. One solution for this is to implement Vuex, a tool that offers centralized state management.

By utilizing Vuex, you can create mutations to add items to a cart that can be accessed by any component. Additionally, you can retrieve cart data from any component using Vuex getters.

Answer 5

Answer №3

In order to successfully transfer all necessary data from one page to another and proceed with the process of adding items to the cart, you must implement a post method. This method will enable you to seamlessly transition between pages and complete the creation of your desired page.

Answer 6

In order to successfully transfer all necessary data from one page to another and proceed with the process of adding items to the cart, you must implement a post method. This method will enable you to seamlessly transition between pages and complete the creation of your desired page.

Answer 7

Answer №4

Check out the live demo on CodeSandbox: https://codesandbox.io/s/94l44j8j14

Incorporate the use of `props` to transmit values to the cart component.

View Nmdgrey.vue below:

<template>
<div>
  <b>Component 1 : NmdGrey</b><br><br>
<button v-for="(product, index) in boots" :key="index"
@click="addToCart(product.name)" >Add {{product.name}} to Cart</button>
<br><br><hr><br> 
  <shoppingcart :cart="cart" />
  </div>
</template>

<script>
import shoppingcart from './shoppingcart.vue';
export default {
name: 'Nmdgrey',
components:{shoppingcart},
data() {
    return {
      boots:[{name: 'adidas adizero'}, {name: 'puma walker'}, {name: 'nike shoe'}, {name: 'adidas plain'}],
      cart:[],
    }
  },
  methods: {
addToCart(boots) {
  this.cart.push({ name: boots });

  }
} 

}
</script>

Refer to Shoppingcart.vue code snippet below:

<template>
  <div>
    <b>Component 2 : Shopping cart</b>
    <br>
    <br>
    <div v-for="(product, index) in cart" :key="index">{{product.name}}</div>
  </div>
</template>

<script>
export default {
  name: "Shoppingcart",
  props: ["cart"],
  data() {
    return {};
  }
};
</script>

Answer 8

Check out the live demo on CodeSandbox: https://codesandbox.io/s/94l44j8j14

Incorporate the use of `props` to transmit values to the cart component.

View Nmdgrey.vue below:

<template>
<div>
  <b>Component 1 : NmdGrey</b><br><br>
<button v-for="(product, index) in boots" :key="index"
@click="addToCart(product.name)" >Add {{product.name}} to Cart</button>
<br><br><hr><br> 
  <shoppingcart :cart="cart" />
  </div>
</template>

<script>
import shoppingcart from './shoppingcart.vue';
export default {
name: 'Nmdgrey',
components:{shoppingcart},
data() {
    return {
      boots:[{name: 'adidas adizero'}, {name: 'puma walker'}, {name: 'nike shoe'}, {name: 'adidas plain'}],
      cart:[],
    }
  },
  methods: {
addToCart(boots) {
  this.cart.push({ name: boots });

  }
} 

}
</script>

Refer to Shoppingcart.vue code snippet below:

<template>
  <div>
    <b>Component 2 : Shopping cart</b>
    <br>
    <br>
    <div v-for="(product, index) in cart" :key="index">{{product.name}}</div>
  </div>
</template>

<script>
export default {
  name: "Shoppingcart",
  props: ["cart"],
  data() {
    return {};
  }
};
</script>

Answer 9

Answer №5

If your application is on the smaller side, consider utilizing Vue mixins to create a reusable function like addToCart that can be easily called within your components.

Just like methods, mixins can help you share data across different components in your application.

For more information on how to use mixins in Vue, check out the official documentation here.

Check out this JsFiddle link for a working example: JsFiddle

I hope this explanation proves helpful!

Answer 10

If your application is on the smaller side, consider utilizing Vue mixins to create a reusable function like addToCart that can be easily called within your components.

Just like methods, mixins can help you share data across different components in your application.

For more information on how to use mixins in Vue, check out the official documentation here.

Check out this JsFiddle link for a working example: JsFiddle

I hope this explanation proves helpful!

What is the best way to bring JavaScript code from one component to another in React?

Answer №1

Answer №2

Answer №3

Answer №4

Answer №5

Similar questions

How to retrieve URL parameters from within the when() function in AngularJS

What is the inner workings behind server side rendering in Next.js?

Why does the HTML and CSS slider fail to load upon page refresh, yet works perfectly when the next or previous button is clicked?

Using data variables as arguments in the style section of Vue2

The issue of double submission persists, with the prevention of the default action

Having trouble with your Jquery resize or scroll function?

Pass a reply from a function to a route in expressjs

Navigating with Angular 1.5 Component router in conjunction with Express.js

Transforming Ember's ajax query string

Trouble arises when attempting to add an image to a spherical object

Use jQuery to swap out images and witness the image loading in real time

Troubleshooting a scenario where making edits to a mongoDB item does not result in any updates

The function fs.createReadStream does not exist

Unable to display the string following a space in the value attribute of an hbs file

Could anyone provide some insight into the reason behind this occurrence?

Executing a child component function once the parent component data is loaded in Angular 5

Error message: A boolean type cannot be used as a function in the fullcalendar ajax call

What is the best way to set up a property in a service that will be used by multiple components?

How to access data from a child component in a Vue 3 template

Comparing Data Manipulation Techniques: Server Side vs Client Side Approaches in Reddit API Integration