system-prompts-and-models-of-ai-tools/node_modules/search-insights/lib/utils/index.ts

// use theses type checking helpers to avoid mistyping "undefind", I mean "undfined"
export const isUndefined = (value: any): value is undefined =>
  typeof value === "undefined";
export const isString = (value: any): value is string =>
  typeof value === "string";
export const isNumber = (value: any): value is number =>
  typeof value === "number";

/* eslint-disable @typescript-eslint/ban-types */
export const isFunction = (value: any): value is Function =>
  typeof value === "function";
/* eslint-enable */

export const isPromise = <T>(value: Promise<T> | T): value is Promise<T> =>
  typeof (value as Promise<T> | undefined)?.then === "function";

export * from "./extractAdditionalParams";
export * from "./featureDetection";
export * from "./objectQueryTracker";