default

default(value, [ctx])

Effect

Set the default return value of validate and validateSilent, when the detected value is undefined | null | NaN.

Arguments

• value (*) - The default return value of validate and validateSilent. It is recommended but not necessarily to be a number. When value is a function, then set the return value of value to be the default return value. The function has a parameter: the original detected value - undefined, null or NaN.

• [ctx] (*) - The execution context if value is a function.

Example

const schema1 = racoon.number().allowNaN().default(1);
schema1.validate(undefined); // pass, return 1
schema1.validate(null); // pass, return 1
schema1.validate(NaN); // pass, return 1

const schema2 = racoon().number().allowNaN().default((val) => {
  if (val === undefined) {
    return 1;
  }
  if (val === null) {
    return 2;
  }
  return 3; // The val must be NaN in this case.
});
schema2.validate(undefined); // pass, return 1
schema2.validate(null); // pass, return 2
schema2.validate(NaN); // pass, return 3