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VistasHow to load an async function from a module javascript when webpage load
I basically would like to run an async function as soon as an html page load. I have 2 js files (one module and a simple js) which are loaded however my code seems to not work consistently. Sometime I get an error saying that a function is not defined.
Here is my code
Page.html
<body>
//...
<script type="module"> import { function1 } from "../../js/app.js";
window.function1 = function1; </script>
<script type="module"> import { readDatabase } from "../../js/app.js";
window.readDatabase = readDatabase; </script>
<script src="../../js/store.js" async="async"></script>
</body>
app.js (module)
export async function readDatabase() {
// does something async
return value;
}
store.js (simple javascript)
if (document.readyState == 'loading') {
document.addEventListener('DOMContentLoaded', ready);
} else {
ready();
}
function ready() {
const value = readDatabase();
// do some there stuff
}
Most of the time I am able to run readDatabase() but sometime I get an error - see below.
Any idea on what is the problem and how to resolve this issue?
Many thanks!!
·
Juan Pablo Isaza
1 Respuestas
Responde la pregunta0
I solved by adding defer to the script.
Defer makes the script to be triggered in the exact order of your code, so in this way I am sure that the readDatabase function is imported before the store.js script is executed
·
Juan Pablo Isaza
Denunciar
Responde la pregunta