Sign Up

Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.

Have an account? Sign In

Have an account? Sign In Now

Sign In

Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.

Sign Up Here

Forgot Password?

Don't have account, Sign Up Here

Forgot Password

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.

Have an account? Sign In Now

You must login to ask a question.

Forgot Password?

Need An Account, Sign Up Here

Please briefly explain why you feel this question should be reported.

Please briefly explain why you feel this answer should be reported.

Please briefly explain why you feel this user should be reported.

Sign InSign Up

The Archive Base

The Archive Base Logo The Archive Base Logo

The Archive Base Navigation

  • Home
  • SEARCH
  • About Us
  • Blog
  • Contact Us
Search
Ask A Question

Mobile menu

Close
Ask a Question
  • Home
  • Add group
  • Groups page
  • Feed
  • User Profile
  • Communities
  • Questions
    • New Questions
    • Trending Questions
    • Must read Questions
    • Hot Questions
  • Polls
  • Tags
  • Badges
  • Buy Points
  • Users
  • Help
  • Buy Theme
  • SEARCH
Home/ Questions/Q 1042101
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Editorial Team
Asked: May 16, 20262026-05-16T15:27:16+00:00 2026-05-16T15:27:16+00:00

using javascript I have a function function test(variable) { if(variable != ‘undefined’) { console.log(‘variable

  • 0

using javascript

I have a function

function test(variable)
{
  if(variable != 'undefined')
  {
     console.log('variable is not set');
     console.log('variable', where); 
  }
}

i call it using test();

yet in the console I get
‘where is not set’
‘where is set as undefined’

why?


Update
This function is not what i am actually using.

The function should not do anything if the variable is undefined.

the example was to show the if statement not working.

But the issue was actually me using if variable != 'undefined' instead of variable != undefined

  • 1 1 Answer
  • 0 Views
  • 0 Followers
  • 0
Share
  • Facebook
  • Report

Leave an answer
Cancel reply

You must login to add an answer.

Forgot Password?

Need An Account, Sign Up Here

1 Answer

  • Voted
  • Oldest
  • Recent
  • Random
  1. Editorial Team
    Editorial Team
    2026-05-16T15:27:16+00:00Added an answer on May 16, 2026 at 3:27 pm

    You are testing whether variable has the string content of "undefined".

    What you probably want is

    if(typeof variable != 'undefined')
    

    The rest of the function is not making sense to me yet, either. Where does where come from?

    • 0
    • Reply
    • Share
      Share
      • Share on Facebook
      • Share on Twitter
      • Share on LinkedIn
      • Share on WhatsApp
      • Report

Sidebar

Related Questions

I have a variable that I'm using to build a JavaScript function call, and
Possible Duplicate: Javascript infamous Loop problem? I have the following: function test(a,b,c){ console.log(a+b+c); }
I have a JavaScript hyperlink that is not passing variable to function, undoubtedly due
I have a canvas that I am using a javascript function to display text
I have a javascript client passing a parameter to a server function (I'm using
I have the following Javascript code (using jQuery): floatUpAndDown(); function floatUpAndDown() { $(#bird).animate({top: '+=30px'},
I have the following JavaScript I am using to save selected check boxes: function
I have updated my jSon object using the code <script type=text/javascript > jQuery(document).ready(function($){ var
Using Javascript I'm trying to test whether or not a DIV with the id
When using Javascript as follows: function Test(Example) { } Test.prototype.etc etc etc function Example()

Explore

  • Home
  • Add group
  • Groups page
  • Communities
  • Questions
    • New Questions
    • Trending Questions
    • Must read Questions
    • Hot Questions
  • Polls
  • Tags
  • Badges
  • Users
  • Help
  • SEARCH

Footer

© 2021 The Archive Base. All Rights Reserved
With Love by The Archive Base

Insert/edit link

Enter the destination URL

Or link to existing content

    No search term specified. Showing recent items. Search or use up and down arrow keys to select an item.