feat(base): assertion function type guard (#2)

Author: johannschopplich

src/base.ts

@@ -1,3 +1,5 @@
-export const assert = (condition: boolean, ...infos: any[]) => { if (!condition) throw new Error(...infos) }
+export const assert = (condition: boolean, message: string): asserts condition => {
+  if (!condition) throw new Error(message)
+}
 export const toString = Object.prototype.toString
 export const noop = () => {}