code for email verification in front end using javascript

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Jonathan
25 Feb 2018
1function validateEmail(email) {
2    const re = /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
3    return re.test(String(email).toLowerCase());
4}
Johanna
18 Jul 2017
1function checkEmail() {
2
3    var email = document.getElementById('txtEmail');
4    var filter = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
5
6    if (!filter.test(email.value)) {
7    alert('Please provide a valid email address');
8    email.focus;
9    return false;
10 }
11}
12
13- Call the function on Email textbox
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