Vue Js Submit Array:In Vue.js, submitting an array typically involves creating a form that allows users to input multiple values and then capturing those values into an array upon submission. This can be achieved by binding form inputs to an array using the v-model directive and pushing the input values into the array when the form is submitted. For example, you can use v-for to generate dynamic input fields, bind them to an array using v-model, and then push the values into the array in the submit event handler. This way, you can easily collect and work with an array of user-submitted values in Vue.js.

How can I submit an array of data using Vue.js?

This Vue.js code sets up a simple form that allows users to submit values, which are then displayed as items in an unordered list.

The data property defines the initial state of the application. It includes an empty myArray to hold the submitted values, a newValue variable to bind the input field, a nextId counter to assign unique IDs to each submitted item, and an errorMessage to display any validation errors.

The submitArray method is called when the form is submitted. It checks if the newValue is not empty. If it’s not empty, it adds a new object to the myArray array, containing the nextId and newValue values. It then clears the newValue and errorMessage variables. If the newValue is empty, it sets an error message.

In the template, the @submit.prevent directive prevents the default form submission behavior and calls the submitArray method. The v-model directive binds the input field to the newValue variable. The v-if and v-else directives conditionally render the error message and the list of submitted items based on the length of myArray. The v-for directive loops over myArray and displays each item’s ID and value.

Overall, this code enables users to enter values, submit them, and see them displayed as items in the list. It also performs basic validation to ensure that an empty value is not submitted.

Vue Js Submit Array Example

<div id="app">
    <form @submit.prevent="submitArray">
      <input v-model="newValue" type="text" placeholder="Enter a value">
      <button type="submit">Submit</button>
      <p v-if="errorMessage" class="error-message">{{ errorMessage }}</p>
    </form>
    <ul v-if="myArray.length">
      <li v-for="item in myArray" :key="item.id">
        {{ item.id }}: {{ item.value }}
      </li>
    </ul>
    <p v-else>No items submitted yet.</p>

  </div>
  <script type="module">
    const app = new Vue({
      el: "#app",
      data() {
        return {
          myArray: [],
          newValue: '',
          nextId: 1,
          errorMessage: ''
        }
      },
      methods: {
        submitArray() {
          if (this.newValue.trim() !== '') {
            this.myArray.push({
              id: this.nextId++,
              value: this.newValue
            });
            this.newValue = '';
            this.errorMessage = ''; // Clear any previous error message
          } else {
            this.errorMessage = 'Invalid value. Please enter a non-empty value.';
          }
        }
      }
    });
  </script>

Output of Vue Js Submit Array