A look at the feedback needed for a slider control that feels “right”.
You can get most of the behavioural (though not styling) suggestions in HTML by doing this:
<form> <input type="range" min="0" max="100" value="50" onchange="amount.value=this.value" onmousemove="amount.value=this.value"> <output name="amount">50</output> </form>
Stylish and accessible checkboxes and radio buttons accompanied by an explanation of the CSS involved.
No images were harmed in the making of these form controls.
The ‘Credit Card Number’ Field Must Allow and Auto-Format Spaces (80% Don’t) - Articles - Baymard Institute
A deep dive into formatting credit card numbers with spaces in online forms.
Some interesting insights from usability and accessibility testing at the Co-op.
We used ‘nesting’ to reduce the amount of information on the page when the user first reaches it. When the user chooses an option, we ask for any other details at that point rather than having all the questions on the page at once.
Ever been on one of those websites that doesn’t allow you to paste into the password field? Frustrating, isn’t it? (Especially if you use a password manager.)
It turns out that nobody knows how this ever started. It’s like a cargo cult without any cargo.
PPK has posted some excellent thinking on calendar widgets to Ev’s blog.
I always loved the way that Gov.uk styled their radio buttns and checkboxes with nice big visible labels, but it turns out that users never used the label area. And because it’s still so frickin’ hard to style native form elements, custom controls with generated content is the only way to go if you want nice big hit areas.
A little tool for testing common form issues.
- Did we remember to give every input a label? (No, placeholders are not an adequate replacement)?
- Do our labels’ for attributes match our inputs’ ids?
- Did we take advantage of the url, email, and password input types, or did we forget and just use text?
- Are our required fields marked as such?
Usability Testing of Inline Form Validation: 40% Don’t Have It, 20% Get It Wrong - Articles - Baymard Institute
I saw Christian speak on this topic at Smashing Conference in Barcelona. Here, he takes a long hard look at some of the little things that sites get wrong when doing validating forms on the fly. It’s all good sensible stuff, although it sounds a bit medical when he takes about “Premature Inline Validation.”
Choosing the right input type for your form field.
Another dive into the archives of the www-talk mailing list. This time there are some gems about the origins of the
input element, triggered by the old
Jason breaks down the myths of inputs being tied to device form factors. Instead, given the inherent uncertainty around input, the only sensible approach is progressive enhancement.
Now is the time to experiment with new forms of web input. The key is to build a baseline input experience that works everywhere and then progressively enhance to take advantage of new capabilities of devices if they are available.
You’re supposed to be able to create two-handled sliders with
input type="range" but the browser support isn’t there yet. In the meantime, Lea has created a nice lightweight polyfill.
The greatest form ever made.
A clever technique by Emil to implement the “float label” pattern using CSS. It all hinges on browsers supporting the
:placeholder-shown pseudo-class which, alas, is not universal.
I was hoping that maybe
@supports could come to the rescue (so that a better fallback could be crafted), but that tests for properties and values, not selectors. Damn!
Well, this is timely! Just today I was having a really good natter with Charlotte about using checkboxes, specifically sending multiple values to the server:
You’ll notice that the
namegiven to each of these checkbox
inputelements is the same: “reservation-requested-device”. The square brackets (“”) at the end of the
nameare the magic bit that allows the values of each chosen “reservation-requested-device” checkbox to be submitted as the value of “reservation-requested-device”.
See, I wasn’t sure whether that was just a PHP thing (the only server-side input-handling I’ve had much experience of) or whether it was a more general way of sending multiple values.
Update: It seems that the square brackets are indeed a PHP thing. Multiple values will be sent in any case. See this test case.