let books = {};
Object.assign(
books,//源对象
{"js":"javascript"}//要插入的对象
);
console.log(books);//{js: "javascript"}
Object.assign(
books,
{"h5":"html5"}
);
console.log(books);//{js: "javascript", h5: "html5"}
let books = {};
Object.assign(
books,//源对象
{"js":"javascript"}//要插入的对象
);
console.log(books);//{js: "javascript"}
Object.assign(
books,
{"h5":"html5"}
);
console.log(books);//{js: "javascript", h5: "html5"}