For <input type=”datetime” value=”” … A string representing a global date and time. Value: A valid date-time as defined in [RFC 3339], with these additional qualifications: •the literal letters T and Z in the date/time syntax must always be uppercase •the date-fullyear production is instead defined as four or more digits representing a number greater … Read more
I think what’s missing in the answers above is the need to specify a different value for the step attribute, which has a default value of 1. If you want the input’s validation algorithm to allow floating-point values, specify a step accordingly. For example, I wanted dollar amounts, so I specified a step like this: … Read more
UPDATE: READONLY doesn’t work on checkboxes You could use disabled=”disabled” but at this point checkbox’s value will not appear into POST values. One of the strategy is to add an hidden field holding checkbox’s value within the same form and read value back from that field Simply change disabled to readonly
The date should take the format YYYY-MM-DD. Single digit days and months should be padded with a 0. January is 01. From the documentation: A string representing a date. Value: A valid full-date as defined in [RFC 3339], with the additional qualification that the year component is four or more digits representing a number greater … Read more
The only reason I can think of is browser vendors losing faith in the standard being approved, therefore removing the implementation from their code. To support this thought: W3C just removed both datetime and datetime-local from their working draft. Browser vendors will eventually drop support of both of them. According to html5test most of the … Read more
input file element: <input type=”file” id=”fileinput” /> get file : var myFile = $(‘#fileinput’).prop(‘files’);
Here’s how to select a portion of a text box (range select) and get the selected text: <!DOCTYPE HTML PUBLIC “-//W3C//DTD HTML 4.01//EN” “http://www.w3.org/TR/html4/strict.dtd”> <html> <head> <title> Test </title> <meta http-equiv=”Content-Type” content=”text/html; charset=utf-8″ /> <script type=”text/javascript”> window.onload = function() { var message = document.getElementById(‘message’); // Select a portion of text createSelection(message, 0, 5); // get … Read more
You can do <input type=”text” pattern=”\d*”>. This will cause the numeric keyboard to appear. See here for more detail: Text, Web, and Editing Programming Guide for iOS <form> <input type=”text” pattern=”\d*”> <button type=”submit”>Submit</button> </form>
You are better off doing… <form onsubmit=”return isValidForm()” /> If isValidForm() returns false, then your form doesn’t submit. You should also probably move your event handler from inline. document.getElementById(‘my-form’).onsubmit = function() { return isValidForm(); };
You can prevent Safari from automatically zooming in on text fields during user input without disabling the user’s ability to pinch zoom. Just add maximum-scale=1 but leave out the user-scale attribute suggested in other answers. It is a worthwhile option if you have a form in a layer that “floats” around if zoomed, which can … Read more