Business
Jobs
  • About Us
  • Solutions
    • Job Postings
      Post your job and receive qualified candidates in 48h.
    • Candidate Assessments
      500+ technical and psychological tests, plus anti-fraud.
    • Headhunting
      Tailor-made executive search from start to finish.
    • Payroll + EOR
      Payroll dispersal and EOR across 15+ LATAM countries.
  • Pricing
  • Jobs

0

430
Views
How can I use a variable from another JavaScript file?

I have two html pages, each with a js file.

When I click on a button on page 1, it should change a variable param to true and redirect the user to page 2.

In page 2 I have to check if param = true and then continue my script.

  • page1.html
<div class="container-fluid" id="about">
  <div class="row">
    <div id="mainsubtitle">Page 1</div>
    <button id="edit" type="button">Go to page 2</button>
  </div>
</div>
  • script1.js
var param = false;

edit.addEventListener("click", switchToOpenSession);
...
function switchToOpenSession() {
    param = true;
    ...
}
  • page2.html
<div class="container-fluid">
  <div class="row">
    <div>Page 2</div>
    <button id="create" type="button">Create account</button>
  </div>
</div>
  • script2.js
if (param)
   /* do this */

I tried export/import param but I got Unexpected token 'export' error. I tried type="module" but it doesn't work. The samples that I found was two js files in the same html page!

Can someone help please?

over 4 years ago · Santiago Trujillo
3 answers
Answer question

0

you cannot access variable from different page, except you load page2.html using ajax. Alternative way using cookie or localStorage

script1.js

var param = false;

edit.addEventListener("click", switchToOpenSession);
...
function switchToOpenSession() {
    param = true;
    localStorage.setItem('param', true)
    ...
}

then in script2.js

if (localStorage.getItem('param') == 'true') // note the quotes
over 4 years ago · Santiago Trujillo Report

0

you can export the variable from first file

var first;

export { first }

and in your second file you can import that variable

import { first} from './first.js'

OR

<script type="module" src='first.js'></script>
over 4 years ago · Santiago Trujillo Report

0

You can't share variable states like that. These two pages are totally different instances, so the context is not the same.

Option 1. When you redirect from one page to another you can add URL param and parse it on page 2.

Option 2. Use localStorage. I assume you have the same origin while talking on page 1 and page 2 so the stored data will be visible.

over 4 years ago · Santiago Trujillo Report
Answer question
Find remote jobs

Discover the new way to find a job!

Top jobs
Top job categories
Business
Post vacancy Pricing Sales
Legal
Terms and conditions Privacy policy
© 2026 PeakU Inc. All Rights Reserved.
Andres GPT
Show me some job opportunities
There's an error!