我正在努力与nodeJS中的对象的深层副本。我自己的延伸是废话。下划线的延伸是平的。在stackexchange上有相当简单的扩展变体，但没有一个甚至接近jQuery.extend(true，{}，obj，obj，obj)。
(大多数实际上是可怕的和拧紧asnyc代码的好处。)
(大多数实际上是可怕的和拧紧asnyc代码的好处。)
因此，我的问题：NodeJS有一个很好的副本吗？有任何人移植jQuery的？
解决方法
你想要jQuery的，所以只是使用它：
function extend() {
var options,name,src,copy,copyIsArray,clone,target = arguments[0] || {},i = 1,length = arguments.length,deep = false,toString = Object.prototype.toString,hasOwn = Object.prototype.hasOwnProperty,push = Array.prototype.push,slice = Array.prototype.slice,trim = String.prototype.trim,indexOf = Array.prototype.indexOf,class2type = {
"[object Boolean]": "boolean","[object Number]": "number","[object String]": "string","[object Function]": "function","[object Array]": "array","[object Date]": "date","[object RegExp]": "regexp","[object Object]": "object"
},jQuery = {
isFunction: function (obj) {
return jQuery.type(obj) === "function"
},isArray: Array.isArray ||
function (obj) {
return jQuery.type(obj) === "array"
},isWindow: function (obj) {
return obj != null && obj == obj.window
},isNumeric: function (obj) {
return !isNaN(parseFloat(obj)) && isFinite(obj)
},type: function (obj) {
return obj == null ? String(obj) : class2type[toString.call(obj)] || "object"
},isPlainObject: function (obj) {
if (!obj || jQuery.type(obj) !== "object" || obj.nodeType) {
return false
}
try {
if (obj.constructor && !hasOwn.call(obj,"constructor") && !hasOwn.call(obj.constructor.prototype,"isPrototypeOf")) {
return false
}
} catch (e) {
return false
}
var key;
for (key in obj) {}
return key === undefined || hasOwn.call(obj,key)
}
};
if (typeof target === "boolean") {
deep = target;
target = arguments[1] || {};
i = 2;
}
if (typeof target !== "object" && !jQuery.isFunction(target)) {
target = {}
}
if (length === i) {
target = this;
--i;
}
for (i; i < length; i++) {
if ((options = arguments[i]) != null) {
for (name in options) {
src = target[name];
copy = options[name];
if (target === copy) {
continue
}
if (deep && copy && (jQuery.isPlainObject(copy) || (copyIsArray = jQuery.isArray(copy)))) {
if (copyIsArray) {
copyIsArray = false;
clone = src && jQuery.isArray(src) ? src : []
} else {
clone = src && jQuery.isPlainObject(src) ? src : {};
}
// WARNING: RECURSION
target[name] = extend(deep,copy);
} else if (copy !== undefined) {
target[name] = copy;
}
}
}
}
return target;
}
和一个小测试，以显示它做深拷贝
extend(true,{
"name": "value"
},{
"object": "value","other": "thing","inception": {
"deeper": "deeper","inception": {
"deeper": "deeper","inception": {
"deeper": "deeper"
}
}
}
}
)
但请记住提供归因：https://github.com/jquery/jquery/blob/master/src/core.js
