Can you recommend a straightforward method in Vue.js for validating the format of user input?

Question

Can you recommend a straightforward method in Vue.js for validating the format of user input?

Here is how I have implemented an email sending feature in Vue.js:

<template>
    <button @click="sendMail(); $emit('close')">Send</button>
</template>
<script>
    methods: {
        sendMail () {
            axios.post('/mail', {email: this.email});
            this.$notify.make('Sent!', 'success');
        },
        invalidEmail () {
            this.$notify.make('Invalid email format!', 'failure'):
        }
    }
</script>

My question is, what approach can I take to call the invalidEmail() method whenever the input email is not in a valid format?

javascript validation vue.js

Answer 1

Answer №1

Validate email addresses using regular expressions.

For the regex pattern, refer to:

<template>
    <button @click="sendMail(); $emit('close')">Send</button>
</template>
<script>
    // Regular expression for checking email validity
    const mailRegex = /^(([^<>()[\]\\.,;:\s@"]+(\.[^<>[\\\l{2,}))$/;
    module.exports = {
        // [...]
        methods: {
            sendMail () {
                // Validate email address before sending
                if (!mailRegex.test(this.email)) return this.invalidEmail();

                axios.post('/mail', {email: this.email});
                this.$notify.make('Sent!', 'success');
            },
            invalidEmail () {
                this.$notify.make('Invalid email format!', 'failure'):
            }
        }
    }
</script>

Answer 2

Validate email addresses using regular expressions.

For the regex pattern, refer to:

<template>
    <button @click="sendMail(); $emit('close')">Send</button>
</template>
<script>
    // Regular expression for checking email validity
    const mailRegex = /^(([^<>()[\]\\.,;:\s@"]+(\.[^<>[\\\l{2,}))$/;
    module.exports = {
        // [...]
        methods: {
            sendMail () {
                // Validate email address before sending
                if (!mailRegex.test(this.email)) return this.invalidEmail();

                axios.post('/mail', {email: this.email});
                this.$notify.make('Sent!', 'success');
            },
            invalidEmail () {
                this.$notify.make('Invalid email format!', 'failure'):
            }
        }
    }
</script>

Can you recommend a straightforward method in Vue.js for validating the format of user input?

Answer №1

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