函数参数的解构赋值

Posted 2020-12-10 rickdiculous

 

 

1、函数参数的解构赋值

            //函数参数的解构赋值
            
            function swap([x,y]){
                return [y,x];
            };
            let arr = [1,2];
            arr = swap(arr);

 

 

2、对象的解构赋值

            //对象的解构赋值
            function Computer({
                cpu,
                memory,
                software = [‘ie6‘],
                OS = ‘windows 3.5‘
            }){
                console.log(cpu);
                console.log(memory);
                console.log(software);
                console.log(OS);
            };
            
            new Computer({
                memory:‘128G‘,
                cpu:‘80286‘,
                OS:‘windows 10‘
            })

 

3、小案例实现

            //小案例实现
            function getUserInfo({
                name,
                sex = ‘女‘,
                age,
                height = ‘160cm‘
            }){
                console.log(name);
                console.log(sex);
                console.log(age);
                console.log(height);
                
            };
            getUserInfo({
                name:‘小花‘,
                age:‘23‘,
                height:‘158cm‘
            })