getter/setter示例
默认分类 2017/12/28 05:57
代码如下:
var book = {
_year = 2004
};
Object.defineProperty(book, 'year', {
get: function() {
return this._year
},
set: function(newValue) {
debugger
this._year = newValue
}
})
book.year = 2005
alert(book.year); //2005
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