Created
October 30, 2015 20:08
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Autoload js script stored in localStorage
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<!DOCTYPE html> | |
<html> | |
<head> | |
<meta charset="utf-8"> | |
<title>Autoloader</title> | |
</head> | |
<body> | |
<script> | |
function onlyUnique(value, index, self) { | |
return self.indexOf(value) === index; | |
} | |
function storeUrl(url) { | |
urls = getUrls(); | |
if (urls) | |
urls.push(url); | |
else | |
urls = [url]; | |
localStorage.setItem('urls', JSON.stringify(urls.filter(onlyUnique))); | |
} | |
function getUrls() { | |
var urls = localStorage.getItem('urls'); | |
return JSON.parse(urls); | |
} | |
function loadCode(url) { | |
console.log('load url ' + url); | |
var request = new XMLHttpRequest(); | |
request.onreadystatechange = function() { | |
if (request.readyState === XMLHttpRequest.DONE && request.status === 200) | |
eval(request.responseText); | |
else | |
console.log('Request change', request.readyState, request.status); | |
} | |
request.open('GET', url); | |
request.send(); | |
} | |
var urls = getUrls(); | |
if (urls) { | |
urls.map(loadCode); | |
} | |
else { | |
storeUrl('https://code.jquery.com/jquery-2.1.4.min.js'); | |
console.log('stored jquery url, reload page'); | |
} | |
</script> | |
</body> | |
</html> |
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