CODEWITHSUNDEEP
javascriptjquery
Hitesh
Hitesh

Reputation: 1228

How to check whether textbox have at least 2 letter OR not in jQuery

I have a textbox and I want to have at least 2 letter validation.

I have below code and in which user can insert white space and insert data into the database.

But I want a user at least enter 2 valid letters (char/number) then only he can insert them into the database.

 var data = $("#intials").val();
            if (data) {
               //OK  Inseert value in DB
            }
            else {
                alert('please insert value in intials box.');
            }

Thanks in advance

Upvotes: 0

Views: 429

Answers (1)

Kinglish
Kinglish

Reputation: 23654

Here's a way to do it if you want to be sure the initials are either letters or numbers and are at least 2 characters/numbers long. BTW - I thought maybe intials was a typo so I changed it to initials

let data = $("#initials").val().trim().replace(/[^0-9a-zA-Z]/gi, '');
if (data.length >= 2) { 
  // good to go
  // data is the value of $("#initials") minus any extra whitespace and without any punctuation
} else { 
  alert('please insert at least 2 letters (and/or) numbers in the intials box.'); 
}

Upvotes: 2

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