I use HTML5 patter to validate address field input. Here is example of my code:
<input class="form-control" type="text" name="address1" id="address1" value="" maxlength="40" required>
I would like to use pattern attribute to prevent PO box in the address field. Can anyone help me achieve that with patter regex?
Use a pattern with a negative lookahead. See Regular expression to match a line that doesn't contain a word and replace the word in those patterns with the pattern that matches box followed by a number.
.*(?![Bb][Oo][Xx]\s+\d)
<form>
<input type="text" pattern="((?![Bb][Oo][Xx]\s+\d).)*">
<input type="submit" value="Submit">
</form>
Related
I am having issues with getting a "Phone Number" input validated. I have written the regex pattern to require 10 numbers, but even when I plug in 10 numbers into the input field, I still get the error message: "Please match the requested format" and can't seem to figure out why this is.
All help and advice is greatly appreciated!
<input type="text" id="number" name="number" pattern="/^\d{10}$/" required>
Here is a code example from this page: https://www.w3schools.com/html/html_form_input_types.asp
You can directly do it with an in-build functionality of HTML.
Just use the type type="tel" and you should be good to go.
if you want 10 consecutive numbers without - you can also do: pattern="[0-9]{10}"
<form>
<label for="phone">Enter your phone number:</label>
<input type="tel" id="phone" name="phone" pattern="[0-9]{3}-[0-9]{2}-[0-9]{3}">
</form>
Just place you're input in a <form> and hit submit. It should now match.
I don't believe you need the forward slashes in your regex pattern here.
Try this:
<input type="text" id="number" name="number" pattern="^\d{10}$" required>
Suppose:
There's
First Name : (box for input first name)
Requirement: i cannot left this field empty,error message should generate if i left it empty.
Solve this only through HTML
<form>
first name <input type="text" name="firstname" required>
<input type="submit">
</form>
<input> has a required attribute, as such:
<input type="text" name="username" required>
This will raise an error if the user tries to submit the form without first filling out the input. That being said, please google this next time.
W3Schools Page
I want to validate below input with Alphanumeric and ()._-‘ symbol only.
<input type="text" name="companyName" value="" pattern="[A-Za-z0-9()._-‘]+" title="Alphanumeric with symbols ()._-‘ only" required> </p>
But, when I try the input, only ._‘ can be used, ()- are not working.
You need to escape those characters. They have significance in RegEx and aren't treated as part of the expression. Try the following: [A-Za-z0-9\(\)._\-‘]+
Works fine for me, with the exception of the '-' which probably needs to be first:
[-A-Za-z0-9()._‘]
Try the code below. I don't know why, but the order for the pattern attribute matters.
<form>
<input type="text" name="companyName" value="" pattern="[A-Za-z0-9()_.'-]+" title="Alphanumeric with symbols ()._-‘ only" required>
<input type="submit">
</form>
I need user to enter only numbers (0-9) and characters (a-zA-z)
<input type="text" pattern="^[a-zA-Z0-9]+$" />
I tried the above but this accepts a special character like :#,#$%^&*)! and no space in between
What I am looking for
Ex: Test123, 123John,
It needs to be wrapped in a <form>
<form>
<input type="text" pattern="^[a-zA-Z0-9]+$" />
</form>
Try this:
<input type="text" pattern="[a-zA-Z0-9]+" required>
I am trying to use multiple patterns for an input-field in HTML5.
<input type="text" pattern="\d*.{5,10}" name="plz">
My current input field does not work. Only the second pattern .{5,10} is relevant for the submit. The first attribute \d* hast no effects.
Try the below:
<input type="text" placeholder="" class="form-control" pattern="([0-9]{2})([0-9]{2})([0-9]{2})([0-9]{4})([0-9]{1})">
and just accept AESE640526HOCCNL05...
Hope this can help you.