ahooks/es/utils/index.js

react hooks library

export var isObject = function (value) {
    return value !== null && typeof value === 'object';
};
export var isFunction = function (value) {
    return typeof value === 'function';
};
export var isString = function (value) { return typeof value === 'string'; };
export var isBoolean = function (value) { return typeof value === 'boolean'; };
export var isNumber = function (value) { return typeof value === 'number'; };
export var isUndef = function (value) { return typeof value === 'undefined'; };