In this training video, we explore how to use custom validation within Lightning Forms. We use simple Required validation to ensure a field is completed, a simple expression validation with a specific validation message, and a regular expression validation using javascript.
Some useful examples for regular expressions can be found below:
Valid Email Address Regular Expression
if([[Email]]!==""){
var mailformat = /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/;
return mailformat.test([[Email]]);
} else
return true;IP Address Regular Expression
if([[IPAddress]]!==""){
var ipformat = /\b(?:(?:2(?:[0-4][0-9]|5[0-5])|[0-1]?[0-9]?[0-9])\.){3}(?:(?:2([0-4][0-9]|5[0-5])|[0-1]?[0-9]?[0-9]))\b/ig;
return ipformat.test([[IPAddress]]);
} else
return true;MasterCard Regular Expression
if([[MasterCard]]!==""){
var mcformat = /^(?:5[1-5][0-9]{2}|222[1-9]|22[3-9][0-9]|2[3-6][0-9]{2}|27[01][0-9]|2720)[0-9]{12}$/g;
return mcformat.test([[MasterCard]]);
} else
return true;Phone Number US Format Regular Expression
if([[WorkPhone]]!==""){
var usphoneformat = /(?:\d{1}\s)?\(?(\d{3})\)?-?\s?(\d{3})-?\s?(\d{4})/g;
return usphoneformat.test([[WorkPhone]]);
} else
return true;Useful Resources:
Regular Expression Syntax help: https://www.w3schools.com/jsref/jsref_obj_regexp.asp
Regular Expression Test Tool: https://regexr.com/
