pattern : String

pattern

String

A string instance is considered valid if the regular expression matches the instance successfully.

Value	This keyword must be set to a valid ECMA-262 regular expression
Kind	Assertion
Applies To	String
Dialect	2019-09
Changed In	Draft 4
Introduced In	Draft 1
Vocabulary	Validation
Specification	https://json-schema.org/draft/2019-09/draft-handrews-json-schema-validation-02#rfc.section.6.3.3
Metaschema	https://json-schema.org/draft/2019-09/meta/validation
Official Tests	draft2019-09/pattern.json draft2019-09/optional/ecmascript-regex.json draft2019-09/optional/non-bmp-regex.json
Default	`".*"`
Annotation	None
Affected By	None
Affects	None
Also See	format (Vocabulary: Format) patternProperties (Vocabulary: Applicator)

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