搜索“ andkk”时出现此错误:
未处理的拒绝(TypeError):res.map不是函数
这是我的代码:
state = {
ListBook: [],
SaveQuery: '',
}
SearchBook = (query) => {
if (query.trim() !== '') {
BooksAPI.search(query).then((res) => {
res.map(book => (this.props.allBooks.filter((b) => b.id === book.id).map(b => book.shelf = b.shelf)))
if (res && res.length) this.setState({
ListBook: res,
SaveQuery: query
})
if (res.error) this.setState({
ListBook: [],
SaveQuery: 'query'
})
})
} else {
this.setState({
ListBook: []
})
}
}
答案 0 :(得分:0)
我找到了解决方法:
BooksAPI.search(query).then((res) => {
if (res && res.length) this.setState({ListBook: res, SaveQuery: query})
if (res.error) return res
res.map(book => (this.props.allBooks.filter((b) => b.id === book.id).map(b => book.shelf = b.shelf)))