enhancementgood first issuehelp wanted
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Description
Add a new validator to packages/form/src/validators.js file of "typeof".
Motivation Fields can define a validation of their value type, to be verified when field value changes. For example to verify that the value of the field is "string".
Code
- args (and defaultArgs) should include:
- "type" - default undefined
-
func: checks if : typeof value === args.type
-
message: should have a matching error message depend on the args of 'Invalid type. Expected type of "{args.type}"'
Tests
- should add unit tests to t all existing type that are listed here: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/typeof
Docs should add documentation in Form -> Validators -> Build in validators: https://yahoo.github.io/jafar/docs/validators.html#built-in-validators
CHANGELOG
- add a record to the CHANGELOG.md under the "Unreleased" section -> Form https://github.com/yahoo/jafar/blob/master/CHANGELOG.md