'use strict';
var person = new Object();
Object.defineProperties(person, {
username: {
configurable: true,
enumerable: true,
writable: false,
value: '洛神赋'
},
password: {
configurable: true,
enumerable: true,
writable: true,
value: '123456'
},
_hometown: {
configurable: true,
enumerable: true,
value: '武汉'
},
hometown: {
get: function() {
return this._hometown;
}
}
});
console.log(person);
try {
person.username = '骆浩';
} catch(ex) {
console.log('username的writable特性是false,因此不可以修改。');
}
console.log(person.hometown)
try {
person.hometown = '北京';
} catch(err) {
console.log('cannot set property hometown which has only a getter');
}
console.log(person.hometown);
JavsScript中的数据属性和构造器属性
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转载自blog.csdn.net/qq_23143555/article/details/81163274
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