Remove any initial spaces from field - scripts?

[elany32707205]

Is there a way to remove any initial spaces for a text field. So if user enters: [ Bill] it formats it to: [Bill].

This is for a validation check so the user cannot just enter spaces and is required to enter a name. Maybe a way to check for letters as well. 

if (getField("step1.namefield").valueAsString === ""){

( As spaces pass check for this) 

[JR Boulay]

You should use the "trim()" method: https://www.w3schools.com/jsref/jsref_trim_string.asp

Be careful, PDF-JavaScript (ECMAScript) does not support "let", use "var" instead.