Text or Number type accept into the Input box

[ibike]

Hello,

Can somebody tell me which kind of style what I can use for my input if I would like to accept only text or number type for my input field?

Thank you in advance!

 

[thrybergh]

You will need to use a "Regular Expression" in Javascript if you want to validate a field in this way. It will check that the string entered conforms to a specific rule, such as it contains only letters [a-z] or the numbers [0-9].

They are powerful, but the syntax can be tricky at first.

e.g. To test that the "entrantName" field contains only numbers and letters:

var nameTest = /^[a-z 0-9]+$/i;

function isValid(pattern, str) {
	return pattern.test(str);
}


if (!isValid(nameTest, document.all.entrantName.value))
{
	return false;
};