如何从单独的 JS 文件进行 ajax 调用

Question

This is a working code.这是一个工作代码。 I just want to make the call from a separate js file.我只想从一个单独的 js 文件进行调用。 Whenever I try to do so I am getting the error of $ is not defined.每当我尝试这样做时，我都会收到 $ is not defined 的错误。 This is the following code snippets.这是以下代码片段。

HTML code: HTML 代码：

<!DOCTYPE HTML>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>


<script src="https://code.jquery.com/jquery-3.4.1.js" integrity="sha256-WpOohJOqMqqyKL9FccASB9O0KwACQJpFTUBLTYOVvVU=" crossorigin="anonymous"></script>   
<script>
    var data;
    $.ajax({
        headers: { 'X-Auth-Token': 'my API key' },
        url: 'https://api.football-data.org/v2/competitions',
        dataType: 'json',
        type: 'GET',
    }).done(function(response) {
        // do something with the response
        console.log(response);
        data = response;
    });
</script>

</body>
</html>

JS code: JS代码：

var express = require('express');
var app = express();
var hbs = require('hbs');

app.set('view-engine', 'hbs');

app.use(express.static(__dirname + '/public'));

app.get('/', function(req, res){
    res.render('index.hbs');
})



app.listen(3000);

Answer 1

put you code inside of a function in the separate JS file.将代码放在单独的 JS 文件中的 function 中。

separate.js分离.js

function ajaxCall() {
var data;
    $.ajax({
        headers: { 'X-Auth-Token': 'my API key' },
        url: 'https://api.football-data.org/v2/competitions',
        dataType: 'json',
        type: 'GET',
    }).done(function(response) {
        // do something with the response
        console.log(response);
        data = response;
    });
}

then... in you html call the function然后...在您 html 中拨打 function

<script src="https://code.jquery.com/jquery-3.4.1.js" integrity="sha256-WpOohJOqMqqyKL9FccASB9O0KwACQJpFTUBLTYOVvVU=" crossorigin="anonymous"></script>
<script src="separate.js"></script>
...... more code .....
<script>ajaxCall()</script>

如何从单独的 JS 文件进行 ajax 调用

问题描述

1 个解决方案

解决方案1
1 已采纳 2020-04-14 18:16:09

如何从单独的 JS 文件进行 ajax 调用

问题描述

1 个解决方案

解决方案1 1 已采纳 2020-04-14 18:16:09

解决方案1
1 已采纳 2020-04-14 18:16:09