pattern

Function

When the instance value is a string, this provides a regular expression that a instance string value should match in order to be valid.

The regular expression should be ECMA 262 compatible.

Valid Values

Examples

schema = { "type":"string", "pattern": "[0-9]+" }

assertValid("12345")
assertValid("contains a number: 1")
assertValid(null) // something besides a string is not constrained

assertInvalid("contains no numbers")

Meta-schema

{
	"type": "string",
	"format": "regex"
}