required

required([strict=false])

Effect

Restrict the detected string is not undefined | null.

If strict mode is turned on(strict=true), the detected string can not be undefined | null | ''.

Arguments

• [strict] (boolean) - Whether turn on strict mode, default is false, means no-strict mode. You can exactly set strict to true to turn on strict mode.

Example

const schema1 = racoon.string();
schema1.validate(undefined); // pass, return: undefined
schema1.validate(null); // pass, return: null
schema1.validate(''); // pass, return: ''

const schema2 = racoon.string().required();
schema2.validate(undefined); // fail
schema2.validate(null); // fail
schema2.validate(''); // pass

const schema3 = racoon.string().required(true);
schema3.validate(undefined); // fail
schema3.validate(null); // fail
schema3.validate(''); // fail