JSFiddle - React, Tailwind, and code Playground
HTML
<input type="submit" name="submit" value="Submit" onclick="CheckDecimal(text1)"/>JavaScript
function CheckDecimal(inputtxt)
{
alert();
var decimal= /^[-+]?[0-9]+\.[0-9]+$/;
if(inputtxt.value.match(decimal))
{
alert('Correct, try another...')
return true;
}
else
{
alert('Wrong...!')
return false;
}
}