Updated the files.

my-app/node_modules/ajv/lib/compile/validate/defaults.ts

@@ -0,0 +1,32 @@
+import type {SchemaObjCxt} from ".."
+import {_, getProperty, stringify} from "../codegen"
+import {checkStrictMode} from "../util"
+
+export function assignDefaults(it: SchemaObjCxt, ty?: string): void {
+  const {properties, items} = it.schema
+  if (ty === "object" && properties) {
+    for (const key in properties) {
+      assignDefault(it, key, properties[key].default)
+    }
+  } else if (ty === "array" && Array.isArray(items)) {
+    items.forEach((sch, i: number) => assignDefault(it, i, sch.default))
+  }
+}
+
+function assignDefault(it: SchemaObjCxt, prop: string | number, defaultValue: unknown): void {
+  const {gen, compositeRule, data, opts} = it
+  if (defaultValue === undefined) return
+  const childData = _`${data}${getProperty(prop)}`
+  if (compositeRule) {
+    checkStrictMode(it, `default is ignored for: ${childData}`)
+    return
+  }
+
+  let condition = _`${childData} === undefined`
+  if (opts.useDefaults === "empty") {
+    condition = _`${condition} || ${childData} === null || ${childData} === ""`
+  }
+  // `${childData} === undefined` +
+  // (opts.useDefaults === "empty" ? ` || ${childData} === null || ${childData} === ""` : "")
+  gen.if(condition, _`${childData} = ${stringify(defaultValue)}`)
+}