This is my first time using the pattern attribute. The following code is inside a <form> tag:
<input type="number" name="" placeholder="Number" pattern=".{12,13}" required>
I expect the pattern to make the number has minimal of 12 numbers and a max of 13 numbers. However, I can still submit the form with less than 12 numbers.
You can't use the pattern attribute on inputs of type number:
<input type="number"> elements do not support use of the pattern
attribute for making entered values conform to a specific regex
pattern. The rationale for this is that number inputs won't be valid
if they contain anything except numbers, and you can constrain the
minimum and maximum number of valid digits using the min and max
attributes
- MDN
As explained on MDN, you can use the min and max attributes to specify your domain:
<form>
<input type="number" name="number" placeholder="Number" min="100000000000" max="9999999999999" required />
<input type="submit" />
</form>
Alternatively, you can use an input type of text (which does allow pattern), and match for digits (\d):
<form>
<input type="text" name="number" placeholder="Number" pattern="\d{12,13}" inputmode="numeric" title="Your number must be 12-13 digits long" required />
<input type="submit" />
</form>
Related
How to ensure between 7 and 10 digits are entered using pattern attribute in HTML? I have following code:
<input type="number" name="Student" id="studID" required pattern="\d{7,10}" />
The number type of input elements does not support a pattern attribute:
See the MDN documentation in <input type="number">
In addition to the attributes commonly supported by all types, inputs of type number support these attributes:
Attribute Description
max The maximum value to accept for this input
min The minimum value to accept for this input
placeholder An example value to display inside the field when it's empty
readonly A Boolean attribute controlling whether or not the value is read-only
step A stepping interval to use when using up and down arrows to adjust the value, as well as for validation
<input type="text"> has the pattern attribute.
You could use the min and max attributes like so.
<input type="number" name="Student" id="studID" min="1000000" max="9999999999">
<input type="number" name="Student" id="studID" minlength="7" maxlength="10">
should solve the problem you're having
You can add pattern attribute like this:
<input type="number" name="Student" id="studID" required pattern="7-10" />
I need a input field only accept string 6-10 Upper case and lower case
<input type"text" pattern>
<input type="text" minlength=2 maxlength=10>
use minlength and maxlength to dictate length. For example,
<input minlength="6" maxlength="10" type="text">
will only accept input between six and ten characters.
I have this two inputs one of type text and the other number
<input type="number" class="form-control" id="phone" name="phone" placeholder="Telephone Number" maxlength="10" pattern=".{10,}" required title="10 characters minimum"/>
<input type="text" class="form-control" id="names" name="names" placeholder="Names" pattern=".{5,30}" title="Minimum of 5 characters required"/>
the input text is able to respond when the user fills less than 5 characters but the type number does not respond when the input is less or greater than 10. It does respond however to the required rule.
How can i set the minimum characters for the input type number without having to result to javascript?.
Maybe you could solve it with the min attribute of the input type number like min="1000000000".
How do I pattern match validation for input of 1 to 3 digit number. I tried below and it does not work
<input type="text" title="FOO should be a 3 Digit Number Only" pattern="[\d]{3}" id="uid" name="foo<?php echo $i+1;?>" placeholder="Enter FOO" placeholder="FOO" required="'required'" minlength="1" maxlength="3" />
You are looking for a RegEx: /^\d{1,3}$/ or ^0*\d{1,3}$ to allow numbers starting with any amout of 0s.
<input type="text" pattern="^\d{1,3}$" />
^ makes sure the string starts with that pattern, and $ makes sure that it ends with that pattern
You can try your RegEx on websites like https://regex101.com or http://regexr.com
Try to use this pattern:
pattern="^\d{1,3}$"
The other way is to use maxlength property like
<input type="text" maxlength="3" />
This will make sure that you can have maximum 3 digit number in your textbox.
how to write pattern for input type="text" (it can't be number and the validation can't be with JS) that allow me to enter only numbers, min:1 and max:5000?
<input type="text" name="someName" id="someId" required pattern=""/>
Here you go - not an input with type="number" and no JS:
<input type="text" name="someName" id="someId" required="required"
pattern="(5000|([1-4][0-9][0-9][0-9])|([1-9][0-9][0-9])|([1-9][0-9])|[1-9])"/>
The basic pattern is to match 5000 or 4-digit number or 3-digit number or 2-digit number or non-zero 1-digit number.
If you can accept 0, the pattern can be even simpler:
(5000|([1-4]?[0-9]?[0-9]?[0-9]?))
You can use the predefined min and max attribute for input type="number" as follows,
<input type="number" min=0 max=10>
<input type="submit">
Here is an example
The error for incorrect input will be displayed when you try to submit the form
Let me know if this works :)
<input type="number">
HTML Version above!