首页 > 解决方案 > React - 通过图像数组映射

问题描述

我已经创建了其中包含数组、文本和图像的对象,我希望通过它进行映射以呈现新组件,是否可以通过这样的图像进行映射?因为我的新组件在通过道具传递时没有检测到任何图片,并且不知道我是否做错了什么,或者不可能那样做。

import firstProjectPhoto from '../img/picOne.png';
import secondProjectPhoto from '../img/picTwo.png';
import thirdProjectPhoto from '../img/picThree.png';
import ListOfProjects from "./subcomponents/ListOfProjects";


const projects = [{
    photo:[{firstProjectPhoto},{secondProjectPhoto},{thirdProjectPhoto}],
    },
    {
    text:["Project number one", "Project number two", "Project number 3"],
    }];



class Projects extends Component {
    render() {
        return (
            <Grid className="text-center" id="listOfProjects">
                <PageHeader className="projects-header">My Projects</PageHeader>
                {projects.map(e => 
                    <ListOfProjects
                    photo={e.photo}
                    text={e.text}
                    />
                )}
            </Grid>
        );
    }
}

export default Projects;

新组件

class ListOfProjects extends Component {
    render() {
        return (
            <Row className="show-grid text-center projects-list">
                <Col xs={1} sm={1} className="projects">
                    <Image src={this.props.photo} thumbnail responsive/>
                    <p>{this.props.text}</p>
                </Col>
            </Row>
        );
    }
}

export default ListOfProjects;

更新:

实际上有一些进展,谢谢你们:) 问题出在 const 项目的结构中,但它仍然显示 img src 作为 [object Object] 而不是正常图片

const projects = [{
        photo: {firstProjectPhoto},
        text:"first project"
    },
    {
        photo: {secondProjectPhoto},
        text:"second project"
    },
    {
        photo: {thirdProjectPhoto},
        text:"third project"
    }
]


           <Grid className="text-center" id="listOfProjects">
                <PageHeader className="projects-header">
My Projects    </PageHeader> 
                {projects.map((e,i) =>
                    <ListOfProjects
                    photo={e.photo}
                    text={e.text}
                    key={i}
                    />
                )}
            </Grid>

更新

我应该没有{} 现在工作得很好:) 谢谢大家的帮助

标签: javascriptarraysreactjs

解决方案


对象的结构projects不是您所期望的。你要

projects = [
  {
    photo: projectPhoto,
    text: projectText
  },
  ...
]

但是你有

projects = [
  { photo: [...] },
  { text: [...] }
]

您还忘记为key循环中呈现的每个项目添加一个:

{projects.map((e, idx) => 
  <ListOfProjects
    photo={e.photo}
    text={e.text}
    key={idx} // <-- here
    />
)}

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