use variable from js file into another js file
Question
I am doing an autofill extension for chrome. I made the html file where user put his information and i want that these information will be saved, because i need to use that information as a variable from a js file. This is the html popup:
<html>
<head></head>
<body>
<div class="simple-form">
<form method="post">
<input type="text" name="fname" id="full_name" placeholder="Write here your full name"><br><br>
<input type="email" name="email" id="email" placeholder="Write here your email"><br><br>
<input id="save" type="button" value="Salva">
</form>
</div>
<script type="text/javascript" src="scriptExport.js"></script>
</body>
</html>
and this is the js file:
const button = document.getElementById('save');
button.addEventListener('click', updateButton);
function updateButton() {
if (button.value === 'Save') {
button.value = 'Done';
var full_name_E = document.getElementById('full_name').value;
var email_E = document.getElementById('email').value;
}
else {
button.value = 'Save';
}
}
I need to load full_name_E and email_E in another js file that is the autofiller. I tried with import and export but it doesn't work.
2 answers
solution1
0 2021-04-06 15:48:51
Your problem is, that full_name_E and email_E are only available in the local scope of the function updateButton . To make the available at the global scope, initialize them at the top of your code:
const button = document.getElementById('save');
var full_name_E;
var email_E;
button.addEventListener('click', updateButton);
function updateButton() {
if (button.value === 'Save') {
button.value = 'Done';
full_name_E = document.getElementById('full_name').value;
email_E = document.getElementById('email').value;
}
else {
button.value = 'Save';
}
}
If you want to learn more about this topic:
solution2
0
Also you can pass these variable in a function which you can define in your other js file.
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