I have the task of using a password field which checks if it has at least 8 characters, consists of at least 1 uppercase character, 1 lowercase character and 1 digit. How can I do this in the HTML input field using the pattern attribute?
Thank you.
You can use pattern for validation.
<input type="password" id="pass" name="pass" pattern="(?=.*\d)(?=.*[a-z])(?=.*[A-Z]).{8,}" title="Must contain at least one number and one uppercase and lowercase letter, and at least 8 or more characters">
You can learn more here
However, if you ever wanted to use some javascript, then HTML5 does enable some validation, even pattern matching, but I'm pretty sure you'd need some javascript to have this working and also compare the two values with confirm password field as well.
You can try this
<input id="password" name="password" type="password" pattern="^\S{8,}$" onchange="this.setCustomValidity(this.validity.patternMismatch ? 'Must have at least 8 characters' : ''); if(this.checkValidity()) form.password_two.pattern = this.value;" placeholder="Password" required>
<input id="password_two" name="password_two" type="password" pattern="^\S{8,}$" onchange="this.setCustomValidity(this.validity.patternMismatch ? 'Please enter the same Password as above' : '');" placeholder="Verify Password" required>
Related
Sometimes comparing two html password input fields fails.
I have two input fields in a website, with a pattern that has to be valid (at least: one upper- /lowercase char, one number and symbol)
In some cases the passwords are compared as correct/matching, in another example the password is said to be different, although i copy and pasted the same password into both fields.
Is there a problem with the pattern-regex?
Here is the code i use in a form with a button below:
<input id="password" name="pw" type="password" pattern="^(?=.*[a-z])(?=.*[A-Z])(?=.*[0-9])(?=.*[!##$%^&*_=+-]).{12,255}$" onchange="this.setCustomValidity(this.validity.patternMismatch ? 'The password needs to have at least 12 characters and at least one: upper- and lower case letter, a number and one of the symbols: !##$%^&*_=+-' : ''); if(this.checkValidity()) form.pwconfirm.pattern = this.value;" placeholder=" Password" required>
<input id="pwconfirm" name="pwconfirm" type="password" pattern="^(?=.*[a-z])(?=.*[A-Z])(?=.*[0-9])(?=.*[!##$%^&*_=+-]).{12,255}$" onchange="this.setCustomValidity(this.validity.patternMismatch ? 'Password has to match' : '');" placeholder=" Verify Password" required>
This works with the pasword: !Te!st##$123_=+-45**%^&67ABC*
but not with the much simpler: Test007$##007
Thanks for you help.
I tried multiple passwords and RegExs to find a solution that always matches the password fields as valid, when the RegEx is valid and both fields match.
How do I make my input field only accept numbers (don't allow ANY letters to be inputted) and also hide the inputted values? It is taking a sensitive number. This also needs to keep the max and minlength validation at 4.
Here is what is not working:
<input matInput type="password" pattern="[0-9]*" minlength="4" maxlength="4" placeholder="Last Four of SSN" formControlName="ssn" required>
Try this regex for your pattern
[pattern]="'^[0-9]{4}$'"
Do not forget to set also the angular validator for this form field (own validator or pattern validator)
This is probably a really simple fix so hoping someone can help!
I have been tasked with setting password parameters where people are asked to have there password between 5-10 characters.
I am able to bring up the error message so that it asks for more characters than 5 but not the one that asks for it to be between 5-10.
I can set the maximum characters to 10 but that just put a block on how many characters you can have in the field rather than ask people for the specific rules that I am looking for.
Any help will be massively appreciated!
This code will set the min length
This one I was sure would work but restricted what I could put in the box instead of setting certain rules
Thanky you so much in advance!!!
In HTML5 we can use :
<input type="password" pattern=".{5,10}" required>
You can use the minlength option inside the input like so:
<input type="password" id="pass" name="password"
minlength="8" required>
Same with maxlength:
<input type="password" id="pass" name="password"
maxlength="8" required>
Currently I have built a password form like this.
<input id="password" name="password" type="password" minlength='6' ng-model="model.password"
placeholder="Password"
required/>
Here password length is more than 6.
But default users have no password and allow 0 length password.
I have no idea how to do this.
Must look like this(not using javascript)
<input id="password" name="password" type="password" length='0 || > 6' ng-model="model.password"
placeholder="Password"
/>
Is this even possible?
You want to use this:
<input id="password" name="password" type="password" ng-model="model.password" placeholder="Password" pattern="|.{6}.*" />
required enforces the field must be non-empty. Do not use it.
The number in the code means minimum lenght. See description.
Description:
Use a pattern attribute here. It defines a RegEx (regular expression) that describes the content. The check is done by browser. Check it also on server-side.
Example:
<input pattern="|......+" />
Pattern description:
| means "or" (Empty string (left side) or ......+ (right side))
. means any character (only one)
.+ means one or more characters.
Use more dots (.) to set longer string.
If you want to use number, use this:
<input pattern="|.{6}.*">
The number between { and } is length.
.{number} means a string with fixed length.
.* means a string (0 or more characters)
I have the following HTML for making sure password length is over 8 characters:
<label>Password <small>required</small>
<input type="password" name="password" id="password" required pattern=".{8,}">
</label>
<small class="error">Your password must be at least 8 characters long.</small>
This works. However, if in a different field I use the pattern [a-zA-Z]+, like this:
<label>Username <small>required</small>
<input type="text" name="username" required pattern="[a-zA-Z0-9]+">
</label>
<small class="error">Username must consist out of letters or numbers only.</small>
It will allow everything. If I change the pattern in the username field to .{8,}, it will only allow inputs that are over 8 characters in length, as expected. Why does the pattern for the username field not work?
The documentation states that this is the correct way to do it:
<label>Your name <small>required</small>
<input type="text" required pattern="[a-zA-Z]+">
</label>
<small class="error">Name is required and must be a string.</small>
The fix is to wrap the pattern in line begin and end characters, like such:
<input type="text" name="username" required pattern="^[a-zA-Z0-9]+$">
Maybe this is a bug in Foundation that needs to be reported on their Github?