Vue Js Currency Input: Vue js Currency Input refers to a user interface component or widget that allows users to input currency values in a Vue.js application. This component typically displays a field or input box where users can enter a numerical value, which is then automatically formatted based on the user’s locale to render as a currency value. Integrating a Currency Input component into a Vue.js application can improve the handling of financial data and simplify the process of entering currency values. This can reduce input errors and improve accessibility for users from different locales, ultimately enhancing the overall user experience.

How to Create Vue Js Currency Input Box?

The Vue.js framework is used to create a web application that formats currency input in real-time.

The application takes a user’s input of a currency amount and uses regular expressions to remove any non-numeric characters except decimal points.

The formatted Vue Js Currency input includes a dollar sign and comma separators for thousands, and it is bound to a Vue.js data property called currencyValue using the v-model directive.

The Vue.js script creates an instance of the app, defines the data object, and includes a computed object that uses a custom method called formatCurrency to format the currencyValue property.

The formatInput method is called when the user types into the input field, and it updates the currencyValue property with the formatted input.

The app mounts the instance to a div with an id of app, making it live on the webpage.

This Vue.js app provides a simple way to format currency inputs for a better user experience, and it is a great example of how Vue.js can be used to create dynamic web applications.

Vue Js Currency Input is a useful keyword to include in content related to web development and currency formatting using Vue.js.

Vue Js Currency Input Example

<div id="app">
  <label for="currency-input">Enter amount:</label>
  <div class="currency-input-container">
	 <span class="dollar-sign">$</span>
	  <input type="text" id="currency-input" v-model="currencyValue" @input="formatInput" />
   </div>
	<p>Formatted amount: {{ formattedCurrency }}</p>
    </div>
	<script type="module">
		const app = Vue.createApp({
			data() {
				return {
					currencyValue: ""
				}
			},
			computed: {
				formattedCurrency() {
					// format the currency value using a custom method
					return this.formatCurrency(this.currencyValue);
				}
			},
			methods: {
				formatCurrency(value) {
					if (!value) return "";
					// remove any non-numeric characters except decimal point
					let numericValue = value.replace(/[^\d.]/g, "");
					// split into integer and decimal parts
					let parts = numericValue.split(".");
					// add comma separators for thousands to integer part
					parts[0] = parts[0].replace(/\B(?=(\d{3})+(?!\d))/g, ",");
					// join integer and decimal parts with a period
					return "$" + parts.join(".");
				},
				formatInput(event) {
					// remove non-numeric characters except decimal point
					let input = event.target.value.replace(/[^\d.]/g, "");
					// add dollar sign to input
					event.target.value =  input;
					// format input with comma separators for thousands
					event.target.value = event.target.value.replace(/\B(?=(\d{3})+(?!\d))/g, ",");
					// update data property with formatted input
					this.currencyValue = event.target.value;
				}
			}
		});
		app.mount('#app');
</script>

Output of Vue Js Currency Input

How to format numbers as currency strings in Vue Js?

Vue.js Currency Formatting:This Vue.js code enables users to input an amount in a text field and have it automatically formatted as a currency value using the Intl.NumberFormat() method.

Whenever the user types in the input field, the @input event listener triggers the formatCurrency() method.

The formatCurrency() function checks whether the input field is empty or not, and if it contains any non-numeric characters, it removes them.

Then it uses the Intl.NumberFormat() method to format the input amount according to a specified currency style and currency type (e.g., USD).

The formatted currency value is saved in a variable named “result” and displayed using Vue.js template syntax ({{ result }}) beneath the input field.

Vue Js Currency Input using Intl.NumberFormat

<div id="app">
  <label for="currency-input">Enter amount:</label>
	<div class="currency-input-container">
		<span class="dollar-sign">$</span>
		<input type="text" v-model="amount" @input="formatCurrency"/>
	</div>
	<p>Formatted Currency: {{ result }}</p>
</div>
<script type="module">
		const app = Vue.createApp({
			data() {
				return {
					amount: 0,
					result: ''
				}
			},
			methods: {
				formatCurrency() {
					if (this.amount === '') {
						this.result = '';
					} else {
						this.amount = this.amount.replace(/[^0-9]/g, '');
						const formatter = new Intl.NumberFormat('en-US', {
							style: 'currency',
							currency: 'USD',
						});
						this.result = formatter.format(this.amount);
					}
				}
			}

		});
		app.mount('#app');
</script>

Output of Vue Js Currency Input using Intl.NumberFormat