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Node.js 如何解决这些网页错误?I';我正在制作一个服装应用程序,我需要创建一个下拉列表和一个CSV输入文本框_Node.js_Reactjs - Fatal编程技术网

Node.js 如何解决这些网页错误?I';我正在制作一个服装应用程序,我需要创建一个下拉列表和一个CSV输入文本框

Node.js 如何解决这些网页错误?I';我正在制作一个服装应用程序,我需要创建一个下拉列表和一个CSV输入文本框,node.js,reactjs,Node.js,Reactjs,在此处输入图像描述ack.imgur.com/9cCWZ.png gur.com/X4DXW.png 我认为我得到这些错误的原因是因为我导出它们的方式。我想在屏幕上显示一个下拉列表和一个CSV文本用户输入框。在我正在开发的另一个功能上,我遇到了几乎相同的问题 import React, { useState } from 'react'; import App from '../App'; import { onClickOutside } from 'react'; import { Tex

在此处输入图像描述ack.imgur.com/9cCWZ.png

gur.com/X4DXW.png

我认为我得到这些错误的原因是因为我导出它们的方式。我想在屏幕上显示一个下拉列表和一个CSV文本用户输入框。在我正在开发的另一个功能上,我遇到了几乎相同的问题

import React, { useState } from 'react';
import App from '../App';
import { onClickOutside } from 'react';
import { TextInput } from 'react';
import { handleOnClick } from 'react';
import { isItemInSelection } from 'react';





const KeywordEditor = () => <header title="KeywordEditor"/>;

function Dropdown({ title, items=[], multiSelect = false}) {
    const [open, setOpen] =useState(false);
    const [selection, setSelection] = useState([]);
    const toggle = () => setOpen(!open);
    Dropdown.handleClickOutside = () => setOpen(false);

    function handleOnClick(item) {
        if (!selection.some(curent => curent.id === item.id)) {
            if (!multiSelect) {
                setSelection([item]);
            } else if (multiSelect) {
                setSelection([...selection, item]);
            }
        } else {
            let selectionAfterRemoval = Selection;
            selectionAfterRemoval = selectionAfterRemoval.filter(
                current => current.id /= item.id
            );
            setSelection([...selectionAfterRemoval]);
        }
    }
    function isItemInSelection(item) {
        if (selection.some(current => current.id === item.id)) {
            return true;
        }
        return false;
    }

    return (
        <div className="dd-wraper">
            <div 
            tabIndex={0}
            className="dd-header"
            role="button"
            onKeyPress={() => toggle()}
            onClick={() => toggle(!open)}>
                <div className="dd-header_title">
                    <p className="dd-header_title--bold">{title}</p>
                </div>
                <div className="dd-header_action">
                    <p>{open ? 'Close' : 'Open'}</p>
                </div>
                </div>
                {open && (
                    <ul className="dd-list">
                        {items.map(item => (
                            <li className="dd-list-item" key={item.id}>
                                <button type="button" onClick={() => handleOnClick(item)}>
                                <span>{item.value}</span>
                        <span>{isItemInSelection(item) && 'selected'}</span>
                                </button>
                            </li>
                        ))}
                    </ul> 
                )}
        </div>
    );
};

const Keyword = () => {
    const [value, onChangeText] = React.useState('Keyword');
  
    return (
      <TextInput
        style={{ height: 40, borderColor: 'gray', borderWidth: 1 }}
        onChangeText={text => onChangeText(text)}
        value={value}
      />
    );
    }

const clickOutsideConfig = {
    handleClickOutside: () => Dropdown.handleClickOutside,
};


export default onClickOutside(KeywordEditor, App, Keyword, Dropdown, handleOnClick, isItemInSelection,  clickOutsideConfig);
import React,{useState}来自“React”;
从“../App”导入应用程序;
从“react”导入{onClickOutside};
从“react”导入{TextInput};
从“react”导入{handleOnClick};
从“react”导入{isItemInSelection};
常量关键字编辑器=()=>;
函数下拉列表({title,items=[],multiSelect=false}){
const[open,setOpen]=useState(false);
const[selection,setSelection]=useState([]);
常量切换=()=>setOpen(!open);
Dropdown.handleClickOutside=()=>setOpen(false);
功能单击(项目){
如果(!selection.some(curent=>curent.id==item.id)){
如果(!multiSelect){
选举([项目]);
}else if(多选){
设置选择([…选择,项目]);
}
}否则{
让selectionafterremove=选择;
selectionafterremovation=selectionafterremovation.filter(
当前=>current.id/=item.id
);
设置选择([…删除后选择]);
}
}
功能isItemInSelection(项目){
if(selection.some(current=>current.id==item.id)){
返回true;
}
返回false;
}
返回(
切换()}
onClick={()=>切换(!open)}>

{title}

{打开?'Close':'open'}

{打开&&(
    {items.map(item=>(
  • 点击(项目)}> {item.value} {isItemInSelection(项目)&&“selected”}
  • ))}
)} ); }; 常量关键字=()=>{ const[value,onChangeText]=React.useState('Keyword'); 返回( onChangeText(文本)} value={value} /> ); } 常量ClickOutside配置={ handleClickOutside:()=>下拉列表。handleClickOutside, }; 导出默认OnClickOut(关键字编辑器、应用程序、关键字、下拉列表、handleOnClick、isItemInSelection、clickOutsideConfig);