Vuejs not delivering anticipated result

JavaScript
1 
<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css" integrity="sha384-9gVQ4dYFwwWSjIDZnLEWnxCjeSWFphJiwGPXr1jddIhOegiu1FwO5qRGvFXOdJZ4" crossorigin="anonymous">
	<title>Document</title>
</head>
<body>
	<div id="app">
		<div class="container">
			<form v-if="!submitted" class="mt-5">
				<div class="form-group">
					<label for="email">Email</label>
					<input type="email" v-model:value="email" class="form-control form-control-lg">
				</div>
				<button type="submit" @:click.prevent="process" class="btn btn-primary">Submit</button>
			</form>
			<h2 v-if="submitted" class="mt-5">Thanks for signing Up</h2>
		</div>
	</div>
	
	
<script src="https://cdn.jsdelivr.net/npm/vue@2.5.17/dist/vue.js"></script>
<script>
	var vm = new Vue({
		el: '#app',
		data: {
			email: 'vonbraun@nasa.com',
			submitted: false
		},
		methods: {
			process: function() {
				// alert('Submitted' + this.email);
				this.submitted = true;
			}
		}
	});
</script>
</body>
</html>

Live URL

The anticipated result → This should have been fired.

<h2 v-if="submitted" class="mt-5">Thanks for signing Up</h2>

2

shouldnt that be v-on:submit.prevent inside the form tag instead?

It looks to me like you’re not preventing the form from submitting itself, so it reloads the page.

3

I have made the suggested change, but still seems to be standing at the same locus.

4

You… sure you’ve made the change? (My browser tells me the form has no event listeners, but the button does… a button does not get submitted does not receive the submit event.)

1 Like
5

As m_hutley says, you need to move your event handler onto the form tag:

<form @submit.prevent="process" v-if="!submitted" class="mt-5">
  ...
</form>

Also, I find the flow a little hard to parse, as you start with a negated condition:

<form v-if="!submitted" class="mt-5">
  ...
</form>
<h2 v-if="submitted" class="mt-5">Thanks for signing Up</h2>

For me, this would be easier to read:

<h2 v-if="submitted" class="mt-5">Thanks for signing Up</h2>
<form v-else @submit.prevent="process" class="mt-5">
  ...
</form>
1 Like
7

Hi there, I have not made any changes and quite strange it started to work - The job which was not working has started to work now.

8

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