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Copy path19-loadScript-with-promises.html
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19-loadScript-with-promises.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>load script with promises </title>
</head>
<body>
<script>
// Write the loadscript function using promises which we cover in privous callBack function
let loadScript = ((url) => {
return new Promise((resolve, reject) => {
let script = document.createElement('script');
script.src = url;
document.head.appendChild(script);
script.onload=()=>{
resolve("script loaded")
}
script.onerror=()=>{
reject(Error("script loaded error occure"))
}
})
let promises1=loadScript("https://cdn.jsdelivr.net/npm/@popperjs/core@2.11.6/dist/umd/popper.min.js")
promises1.then((value)=>{
console.log(value);
return("https://cdn.jsdelivr.net/npm/@popperjs/core@2.11.6/dist/umd/popper.min.js")
}).then((value)=>{
console.log("second script ready");
}).catch((error)=>{
console.log("sorry we got some error in script loading");
})
})
</script>
</body>
</html>