js合并对象

      const user = {

        name: 'Kapil Raghuwanshi',

        gender: 'Male'

      };

      const college = {

        primary: 'Mani Primary School',

        secondary: 'Lass Secondary School'

      };

      const skills = {

        programming: 'Extreme',

        swimming: 'Average',

        sleeping: 'Pro'

      };

      const summary = { ...user, ...college, ...skills };

      console.log(summary);

结果：

1. gender: "Male"
2. name: "Kapil Raghuwanshi"
3. primary: "Mani Primary School"
4. programming: "Extreme"
5. secondary: "Lass Secondary School"
6. sleeping: "Pro"
7. swimming: "Average"