NPM 包 - Ajv

// or ESM/TypeScript import
import Ajv from "ajv"
// Node.js require:
const Ajv = require("ajv")
 
const ajv = new Ajv() // options can be passed, e.g. {allErrors: true}
 
const schema = {
  type: "object",
  properties: {
    foo: { type: "integer" },
    bar: { type: "string" },
  },
  required: ["foo"],
  additionalProperties: false,
}
 
const data = {
  foo: 1,
  bar: "abc",
}
 
const validate = ajv.compile(schema)
const valid = validate(data)
if (!valid) console.log(validate.errors)