HTML5 form validation pattern alphanumeric with spaces?

Question

I have the following input tag in my html5 form:

    Company Name*
    

        

Answer 1

Use Like below format code

$('#title').keypress(function(event){
    //get envent value       
    var inputValue = event.which;
    // check whitespaces only.
    if(inputValue == 32){
        return true;    
    }
     // check number only.
    if(inputValue == 48 || inputValue == 49 || inputValue == 50 || inputValue == 51 || inputValue == 52 || inputValue == 53 ||  inputValue ==  54 ||  inputValue == 55 || inputValue == 56 || inputValue == 57){
        return true;
    }
    // check special char.
    if(!(inputValue >= 65 && inputValue <= 120) && (inputValue != 32 && inputValue != 0)) { 
        event.preventDefault(); 
    }
})