I am using a HTML5 input box with type="number". Regarding to some documentations, it should be possible to enter a number with comma (not with period) if I also use the lang="" attribute. It is working in Firefox, but not in Chrome (does not accept a comma). How can I get Chrome to accept the comma in the input box.
My problem is that our German users expect that they can enter a comma instead of a period there.
https://jsfiddle.net/byte2702/y3Lpfw7m/
Please enter a number with comma: <br/>
<input id="num" type="number" step="any" lang="de" pattern="-?[0-9]+[\,.]*[0-9]+" />
As of now (30/08/2017), Antoine Thiry's answer seems to be no longer valid in Chrome (my version is 60.0.3112.113). Unfortunately I don't have any other suggestion, other than simulating type="number" with javascript.
actually, if i read the documentation correctly, pattern is not supported for type=number. hence, stick to type=text and then add pattern="..." for the front end validation. in the next step, you will then need to convert the text input into a real number if it wasn't compatible to JavaScript/computing format.
2017 and still no good solution for this common problem...
As for now, I have tried
<html lang="en">
or
<input type="number" lang="en">
and it let me to input any: comma or period. I have tested it on desktop Ubuntu and mobile Android in Firefox and Chrome.
来源：https://stackoverflow.com/questions/35315157/html5-input-box-with-type-number-does-not-accept-comma-in-chrome-browser