我有一个配置文件,我想在我的一个组件中导入和渲染/循环。配置文件:
data.config.js
export const data = {
clientData: {
name:'Lynda',
age:'53',
userid:7896
},
otherData: [
{
option1: 'good;',
option2: {type: 'confirmed'},
option3: ['u','g','l','y']
},
{
option1: 'awesome;',
option2: {type: 'temporary'},
option3: ['u','g']
},
],
};
component.js文件
import { data } from '../config/client/data.config.js';
..
var clientData = data.clientData; // console o/p returns object key and values
var otherData = data.otherData; // console o/p returns object key and values
..
render() {
const {
title,
favicon,
socialMediaDesc,
socialMediaImg,
...
} = this.props;
...
return(
<html className="no-js" lang="en">
<title>{title}</title> // works as expectec
...
<script dangerouslySetInnerHTML={{ // eslint-disable-line react/no-danger
__html: `
for (var client in ${clientData}) {
if (${clientData}.hasOwnProperty(client)) {
(function(key, value) {
console.log(key, " : ", value);
})(client, ${clientData}[client]);
}
};
`,
}}
</html>
)
}
预期的控制台o / p:
name : Lynda
age : 53
userid : 7896
我得到的结果:Uncaught SyntaxError: Unexpected identifier as value of ${clientData} is [object Object]
如何在render函数中访问clientData和otherData键和值?
答案 0 :(得分:1)
您似乎误解了模板字符串的工作原理。它们会立即创建一个字符串,其中每个${thing}
都被thing
的字符串值替换。
查看我做类似事情时会发生什么,然后打印字符串。
const clientData = {
name: 'Lynda',
age: '53',
userid: 7896
};
const html = `
for (var client in ${clientData}) {
if (${clientData}.hasOwnProperty(client)) {
(function(key, value) {
console.log(key, " : ", value);
})(client, ${clientData}[client]);
}
}`;
console.log(html);
&#13;
你看这是怎么回事?由于clientData
是一个对象,因此它会生成[object Object]
作为字符串的一部分。
如果你真的想要危险地生成一些JS(我会彻底建议反对),那么考虑生成代码然后将其注入HTML。
const clientData = {
name: 'Lynda',
age: '53',
userid: 7896
};
let html = '';
for (var client in clientData) {
if (clientData.hasOwnProperty(client)) {
html += `
(function(key, value) {
console.log(key, " : ", value);
})(${client}, "${clientData[client]}");`;
}
}
console.log(html);
&#13;
我想指出,除非您做了一些非常棘手的事情,否则没有理由将该代码包装在<script>
标记中。按原样运行它。毕竟,你已经在运行一些JS了。也可以马上运行其余部分。
const clientData = {
name: 'Lynda',
age: '53',
userid: 7896
};
for (var client in clientData) {
if (clientData.hasOwnProperty(client)) {
(function(key, value) {
console.log(key, " : ", value);
})(client, clientData[client]);
}
}
&#13;