js 判断两个对象是否相等

Jetaime鱼

于 2018-11-08 17:18:08 发布

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本文介绍了一种判断两个对象是否相等的方法，通过比较对象的所有属性名称和对应属性值来确定对象是否完全相同。

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	//判断两个对象是否相等
	function isObjectValueEqual(a, b) {
        // Of course, we can do it use for in 
        // Create arrays of property names
        var aProps = Object.getOwnPropertyNames(a);
        var bProps = Object.getOwnPropertyNames(b);
     
        // If number of properties is different,
        // objects are not equivalent
        if (aProps.length != bProps.length) {
            return false;
        }
     
        for (var i = 0; i < aProps.length; i++) {
            var propName = aProps[i];
     
            // If values of same property are not equal,
            // objects are not equivalent
            if (a[propName] !== b[propName]) {
                return false;
            }
        }
     
        // If we made it this far, objects
        // are considered equivalent
        return true;
    }