如何将本地json文件数据导入我的JavaScript变量？
我们的目录中有一个employee.json文件，在同一个目录中，我们有一个js文件，我们要在其中导入json文件的内容。
employee.json的内容-
employee.json
"Employees" : [
{
"userId":"ravjy", "jobTitleName":"Developer", "firstName":"Ran","lastName":"Vijay",
"preferredFullName":"Ran Vijay","employeeCode":"H9","region":"DL","phoneNumber":"34567689",
"emailAddress":"ranvijay.k.ran@gmail.com"
},
{
"userId":"mrvjy","jobTitleName":"Developer","firstName":"Murli","lastName":"Vijay",
"preferredFullName":"Murli Vijay","employeeCode":"A2","region":"MU",
"phoneNumber":"6543565","emailAddress":"murli@vijay.com"
}
]
}我们可以使用两种方式中的任何一种来访问json文件-
使用需求模块
使用require模块访问employee.json的代码-
const data = require('./employees.json');
console.log(data);使用提取功能
使用fetch函数访问employee.json的代码-
fetch("./employees.json")
.then(response => {
return response.json();
})
.then(data => console.log(data));注–虽然第一个功能更适合于节点环境，但是第二个功能仅在Web环境中有效，因为仅在Web环境中才能访问fetchAPI。
使用require或fetch函数运行上述任何命令后，控制台输出如下-
{
Employees: [
{
userId: 'ravjy',
jobTitleName: 'Developer',
firstName: 'Ran',
lastName: 'Vijay',
preferredFullName: 'Ran Vijay',
employeeCode: 'H9',
region: 'DL',
phoneNumber: '34567689',
emailAddress: 'ranvijay.k.ran@gmail.com'
},
{
userId: 'mrvjy',
jobTitleName: 'Developer',
firstName: 'Murli',
lastName: 'Vijay',
preferredFullName: 'Murli Vijay',
employeeCode: 'A2',
region: 'MU',
phoneNumber: '6543565',
emailAddress: 'murli@vijay.com'
}
]
}