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Phone number validation using a simple Regular expression 0-9]{3}[-\s\.]?[ 0-9]{4,6}$/im; return re. test(input_str); } function validateForm(event) { var phone = document. getElementById('myform_phone').

The Phone field lets people enter a phone number in U.S. or international format, depending on the Phone Format setting you select.

How to check if a string contains numbers in JavaScript 1) Using Regex. The obvious solution would be to write regex for it. ... 2) Using for loop and isNaN() This method is not the cleanest solution but might be simple. ... 1) Using Regex: ... 2) Using Number() and isNan(): ... 3) Using Lodash:

As you can see, the type attribute has been set to ?tel.? Also, it has a pattern attribute, which takes a regular expression: "[0-9]{3}-[0-9]{3}-[0-9]{4}". It will be used during the phone number validation. By using the HTML5 ?tel? input, you can do phone number validation with shorter code.

Test(phoneNumber)) { if(phoneNumber. length==10){ var validate = true; } else { alert('Please put 10 digit mobile number'); var validate = false; } } else { alert('Not a valid number'); var validate = false; } if(validate){ //number is equal to 10 digit or number is not string enter code here... }

Validation of a number If the number is assigned by a telecom authority and has a carrier and line type. The type of line assigned to the number (mobile, VoIP, toll-free, landline, etc.) To which region the number belongs to. The name of the carrier. The format of the phone number (in standard and local accepted format)

Approach 2: Using substr() Method This example is using the substr() method to format a phone number in Human-Readable format. It is taking a substrings of length 3 and putting '-' among them. Remaining string elements using the same method.

HTML Demo: <input type="tel"> <label for="phone">Enter your phone number:</label> <input type="tel" id="phone" name="phone" pattern="[0-9]{3}-[0-9]{3}-[0-9]{4}" required /> <small>Format: 123-456-7890</small>