first commit

common/resources/client/utils/ts/nullable.ts

@@ -0,0 +1 @@
+export type Nullable<T> = {[K in keyof T]: T[K] | null};

common/resources/client/utils/ts/obj-has-key.ts

@@ -0,0 +1,7 @@
+export function objHasKey<X extends {}, Y extends PropertyKey>(
+  obj: X,
+  prop: Y
+): obj is X & Record<Y, unknown> {
+  // eslint-disable-next-line no-prototype-builtins
+  return obj.hasOwnProperty(prop);
+}

common/resources/client/utils/ts/partial-with-required.ts

@@ -0,0 +1 @@
+export type PartialWithRequired<T, K extends keyof T> = Pick<T, K> & Partial<T>;