How to add validation to multistep form from w3schools
html - Validating a Website - Stack Overflow
W3Schools Criticisms: what's so wrong with it?
Do you validate your HTML?
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- You don't really need any javascript validation, Browser can validate the form for you in the clients own language as long as you use the appropriate type/pattern/min/max/required/maxlength/minlength attributes.
- But for the validation to take place you must instead of using button click event, use the submit event and
event.preventDefault()to stop the default behavior from navigating away. That way browser will validate the form using the constraint validation
if you don't like the look of the constraint validation then you can use the validation api and look at stuff like input.validity object among other things
you have it ready on html as attribute of the input
but in order to takes place you will have to change the code a little bit and make all the logic inside a tags and submit the form using a button and then e.preventDefault() like the other answer told
for more information check this
https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input#Attributes
you can just use this attribute to required that input cannot to be empty
<input type="text" required >
"required" like this ^^^
for minlength just use "minlength" attribute
<input type="text" required minlength="5">
like this ^^^
input type email will check if you input an email ish string
<input type="email" >
like this ^^^
will take any string that has [email protected]
hopes that helps !!!
but if you need more validation then that you will have to create your own :(
maybe this video will able to help you out
https://www.youtube.com/watch?v=In0nB0ABaUk
First of all, w3schools is a terrible website; you'd be better off not using it for anything. For a markup validator, try this or this. Keep in mind that validation only ensures that your markup is syntactically, and to a certain extent, semantically correct, but does not ensure that it'll render or function how you intend across different browsers, for example. For that, you'll have to do testing yourself.
If all you've been told is that you need to "validate" the web site, then you've been given a really bad instruction, because it's nowhere near as complete as it needs to be.
Are you supposed to validate the HTML? Everything can be perfect in the HTML and CSS, and the site may still not work the same way in different browsers. A difference in interpretation of HTML/CSS is not necessarily an indication that something is "invalid".
Get better (or more precise) instructions if you can. Otherwise, make them up, deliver your result, and if it's not what was expected, charge normal consulting rates to do things again once you DO have more precise instructions.
If it's just HTML/CSS validation you're after, the validator at w3.org is the one you should be using. There are also validator add-ons for Firefox and Chrome.
If your goal is equivalent rendering in multiple browsers, the only solution is to test your site in the browsers that are important to you. Remember that different versions of a browser also count as different browsers.
I saw an answer from someone asking for the best resources for HTML and CSS. and whoever is saying w3school was getting downvoted. I want to know why? what is wrong with that? As a beginner learning HTML and CSS, This makes me wonder if I'm learning the wrong things or missing out on some important concepts by using w3schools.
) does not link to the standard does not have links to related elements And this is just
... This is a common and simple one. If you wanna see a much more obvious example, compare their pages for