可用链式方法实现四则运算
/* 简单的链式调用 类实现*/
class Person{
constructor(){
this.name = ''
}
setName(name) {
this.name = name
return this
}
getName() {
console.log('name:==',this.name)
}
}
const person = new Person()
person.setName('zx').getName()
/*函数实现*/
function Person() {
this.name = ''
}
Person.prototype = {
setName: function(name) {
this.name = name
return this
},
getName: function() {
console.log('name:==',this.name)
}
}
const person = new Person()
person.setName('zx').getName()