如果你喜欢common lisp 的这3个函数真是太好了。
function eql(obj, other) { ???return obj === other;}function equal(obj, other, equalp) { ???if (equalp === void 0) { equalp = false; } ???var _tostring = function (value) { return Object.prototype.toString.call(value); }; ???var emptyp = function (value) { ???????return JSON.stringify(value).length === 2 ? true : false; ???}; ???function Equal(obj, other, equalp) { ???????var objTag = _tostring(obj); ???????var otherTag = _tostring(other); ???????var objectTag = '[object Object]'; ???????var arrayTag = '[object Array]'; ???????if (objTag !== objectTag && objTag !== arrayTag && otherTag !== objectTag && otherTag !== arrayTag) { ???????????if (equalp && typeof obj === 'string' && typeof other === 'string') { ???????????????return (obj).toLocaleUpperCase() === (other).toLocaleUpperCase(); ???????????} ???????????return obj === other; ???????} ???????if (objTag !== otherTag) ???????????return false; // 集合类型不一样 ???????if (Object.getOwnPropertyNames(obj).length !== Object.getOwnPropertyNames(other).length) ???????????return false; // 集合元素数量不一样 ???????if (emptyp(obj) && emptyp(other)) ???????????return true; // 类型一样的空集合，永远相等。 ???????for (var k in obj) { ???????????if (k in other) { // 元素是否相交 ???????????????var obj_value = obj[k]; ???????????????var other_value = other[k]; ???????????????var obj_item_tag = _tostring(obj_value); ???????????????var other_item_tag = _tostring(other_value); ???????????????if (obj_item_tag === other_item_tag) { ???????????????????if (obj_item_tag === objectTag || obj_item_tag === arrayTag || other_item_tag === objectTag || other_item_tag === arrayTag) { ???????????????????????return Equal(obj_value, other_value, equalp); ???????????????????} ???????????????????else { ???????????????????????if (obj_value === other_value) { ???????????????????????????console_1.log('done.'); ???????????????????????} ???????????????????????else { ???????????????????????????return false; ???????????????????????} ???????????????????} ???????????????} ???????????????else { ???????????????????return false; ???????????????} ???????????} ???????????else { ???????????????return false; ???????????} ???????} ???????return true; ???} ???return Equal(obj, other, equalp);}function equalp(obj, other) { ???return equal(obj, other, true);}调试
import { ???log as l} from 'console';function eql(obj: any, other: any) { ???return obj === other;}function equal(obj: any, other: any, equalp: boolean = false) { ???const _tostring = (value: any): string => Object.prototype.toString.call(value); ???const emptyp = function (value: any) { ???????return JSON.stringify(value).length === 2 ? true : false; ???} ???function Equal(obj: any, other: any, equalp: boolean): boolean { ???????let objTag = _tostring(obj); ???????let otherTag = _tostring(other); ???????let objectTag = '[object Object]' ???????let arrayTag = '[object Array]' ???????if (objTag !== objectTag && objTag !== arrayTag && otherTag !== objectTag && otherTag !== arrayTag) { ???????????if (equalp && typeof obj === 'string' && typeof other === 'string') { ???????????????return (obj).toLocaleUpperCase() === (other).toLocaleUpperCase(); ???????????} ???????????return obj === other; ???????} ???????if (objTag !== otherTag) return false;// 集合类型不一样 ???????if (Object.getOwnPropertyNames(obj).length !== Object.getOwnPropertyNames(other).length) return false; // 集合元素数量不一样 ???????if (emptyp(obj) && emptyp(other)) return true; // 类型一样的空集合，永远相等。 ???????for (const k in obj) { ???????????if (k in other) { // 元素是否相交 ???????????????let obj_value = obj[k]; ???????????????let other_value = other[k]; ???????????????let obj_item_tag = _tostring(obj_value); ???????????????let other_item_tag = _tostring(other_value); ???????????????if (obj_item_tag === other_item_tag) { ???????????????????if (obj_item_tag === objectTag || obj_item_tag === arrayTag || other_item_tag === objectTag || other_item_tag === arrayTag) { ???????????????????????return Equal(obj_value, other_value, equalp); ???????????????????} else { ???????????????????????if (obj_value === other_value) { ???????????????????????????l('done.'); ???????????????????????} else { ???????????????????????????return false; ???????????????????????} ???????????????????} ???????????????} else { ???????????????????return false; ???????????????} ???????????} else { ???????????????return false; ???????????} ???????} ???????return true; ???} ???return Equal(obj, other, equalp)}function equalp(obj: any, other: any) { ???return equal(obj, other, true);}l(equalp('hello', 'HELLo'))js函数 eql，equal，equalp
原文地址：https://www.cnblogs.com/ajanuw/p/9123787.html