how to restrict special characters without restricting spaces in string field

[kalp]

Hi, i want to restrict special characters in string field. And I used the below script , it is restricting spaces also, can anyone help on how to achieve this, without restricting spaces.

function onChange(control, oldValue, newValue, isLoading) {
if (isLoading || newValue == '') {
return;
}

//Type appropriate comment here, and begin script below.

var regex = new RegExp("^[a-zA-Z0-9]*$"); //no special characters
var str = g_form.getValue('title_of_the_usecase');
var len = str.length;

if(!regex.test(newValue))

{
alert('Please enter only letters');
g_form.setValue('title_of_the_usecase','');
}

}

Regards,

kalyani

[Hitoshi Ozawa]

Hi kalyani,

Use "\s"

var regex = new RegExp("^[a-zA-Z0-9\s]*$"); //no special characters

[Musab Rasheed]

Hi Kalyani,

Use this

 /^[0-9a-zA-Z]*$/;

Regards

[Hitoshi Ozawa · Accepted solution]

Complete script.

function onChange(control, oldValue, newValue, isLoading) {
    if (newValue != '') {
        var regex = /^[a-zA-Z0-9\s]*$/;
        if (!regex.test(newValue)) {
            g_form.clearValue('title_of_the_usecase');
            g_form.showFieldMsg('title_of_the_usecase', "Please only enter letters.", "error");
		}
    }
}

Execution results:

case 1: OK

case 2: Special character. Entered "This has a special character $ in the sentence"

[kalp]

Thank you