Title: indexOf error
Last modified: October 17, 2018

---

# indexOf error

 *  Resolved [cncdev](https://wordpress.org/support/users/cncdev/)
 * (@cncdev)
 * [7 years, 8 months ago](https://wordpress.org/support/topic/indexof-error/)
 * I am getting the following JavaScript error:
 * `Uncaught TypeError: Cannot read property 'indexOf' of undefined`
 * this is happening on
 *     ```
       if(amount.indexOf('-') != -1){
           amount = amount.split('-');
           amount = amount[1].trim();
       }
       ```
   
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Findexof-error%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Thread Starter [cncdev](https://wordpress.org/support/users/cncdev/)
 * (@cncdev)
 * [7 years, 8 months ago](https://wordpress.org/support/topic/indexof-error/#post-10793183)
 * This was user error, I was trying to put values directly into the button instead
   of tag names for other inputs.
 *  [Uriahs Victor](https://wordpress.org/support/users/uriahs-victor/)
 * (@uriahs-victor)
 * [7 years, 8 months ago](https://wordpress.org/support/topic/indexof-error/#post-10835225)
 * [@cncdev](https://wordpress.org/support/users/cncdev/) I’m having this issue 
   but can’t figure out what you did exactly to fix it, can you please elaborate
   and maybe provide a screenshot?

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘indexOf error’ is closed to new replies.

 * ![](https://ps.w.org/contact-form-7-paypal-extension/assets/icon-256x256.png?
   rev=3240530)
 * [Accept PayPal Payments using Contact Form 7](https://wordpress.org/plugins/contact-form-7-paypal-extension/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/contact-form-7-paypal-extension/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/contact-form-7-paypal-extension/)
 * [Active Topics](https://wordpress.org/support/plugin/contact-form-7-paypal-extension/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/contact-form-7-paypal-extension/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/contact-form-7-paypal-extension/reviews/)

## Tags

 * [javascript error](https://wordpress.org/support/topic-tag/javascript-error/)

 * 2 replies
 * 2 participants
 * Last reply from: [Uriahs Victor](https://wordpress.org/support/users/uriahs-victor/)
 * Last activity: [7 years, 8 months ago](https://wordpress.org/support/topic/indexof-error/#post-10835225)
 * Status: resolved