解释 JavaScript 中的 import “as” 和 Export “as” 构造。
import as 允许我们在不同的名称下导入命名模块。
export as 允许我们在不同的名称下导出命名模块。
以下是 Javascript import as 和 export as 构造的代码 −
示例
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document</title>
<style>
body {
font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}
.result {
font-size: 18px;
font-weight: 500;
color: rebeccapurple;
}
</style>
</head>
<body>
<h1>Import as and Export as in JavaScript</h1>
<div class="result"></div>
<button class="Btn">CLICK HERE</button>
<h3>Click on the above button to execute the imported function</h3>
<script src="script.js" type="module"></script>
</body>
</html>script.js
import {test,tellTime as showTime} from "./sample.js";
let resultEle = document.querySelector('.result');
document.querySelector('.Btn').addEventListener('click',()=>{
resultEle.innerHTML+=test();
resultEle.innerHTML+=showTime();
})sample.js
function testImport() {
return "Module testImport has been imported" + "";
}
function tellTime() {
return new Date();
}
export { testImport as test, tellTime };输出
上面的代码将生成以下输出 −

点击“点击这里”按钮后 −

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