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  • js对象克隆, 深复制.

    亲测有效:

    //对象克隆
            function clone(obj) {
                // Handle the 3 simple types, and null or undefined
                if (null == obj || "object" != typeof obj) return obj;
    
                // Handle Date
                if (obj instanceof Date) {
                    var copy = new Date();
                    copy.setTime(obj.getTime());
                    return copy;
                }
    
                // Handle Array
                if (obj instanceof Array) {
                    var copy = [];
                    var len = obj.length;
                    for (var i = 0; i < len; ++i) {
                        copy[i] = clone(obj[i]);
                    }
                    return copy;
                }
    
                // Handle Object
                if (obj instanceof Object) {
                    var copy = {};
                    for (var attr in obj) {
                        if (obj.hasOwnProperty(attr)) copy[attr] = clone(obj[attr]);
                    }
                    return copy;
                }
    
                throw new Error("Unable to copy obj! Its type isn't supported.");
            }
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  • 原文地址:https://www.cnblogs.com/xachary/p/4139174.html
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