isValid

Tests whether a value meets a validation or data type rule.

isValid(type, value, min, max, pattern) → returns boolean

Argument Reference

type string
Required

The valid format for the data.

Values:

any
array
binary
boolean
component
creditcard
date
email
eurodate
float
function
guid
integer
numeric
query
range
regex
regular_expression
social_security_number
ssn
string
struct
telephone
time
time
url
usdate
uuid
variablename
xml
zipcode

value any
Required

The value to test.

min numeric

The minimum valid value; used only for range validation.

max numeric

The maximum valid value; used only for range validation.

pattern string

A regular expression that the parameter must match;
used only for regex or regular_expression validation.

Compatibility

ColdFusion:

Version 7+ CF8+ - added component as a type option. CF11+ - no longer allows currency symbols at the start and commas inside a number. Can be reverted to legacy mode by setting this.strictNumberValidation = false in Application.cfc

Examples
Sample code invoking the isValid function

Check to see if a 235 is an integer

Use the isValid function with integer as the type.

isValid("integer", 235)

Expected Result: true

Validate an Email Address

Use the isValid function with email as the type.

isValid("email", "user@example.com")