/**
 * 判断是否不等
 * @param a 参数一
 * @param b 参数二
 */
export declare function safeNotEqual(a: any, b: any): boolean;
export declare const shallowEqual: (objA: any, objB: any) => boolean;
/**
 * Check if two values are loosely equal - that is,
 * if they are plain objects, do they have the same shape?
 */
export declare function looseEqual(a: any, b: any): boolean;
/**
 * Get index with looseEqual
 * @param arr
 * @param val
 */
export declare function looseIndexOf(arr: any[], val: any): number;
/**
 * Check if two values are loosely equal
 * @param a
 * @param b
 */
export declare function deepEqual(a: any, b: any): boolean;