Skip to main content

Get Support
Have a question? Let's get you an answer!

How Do I...? Troubleshooting Code & Webhooks Developer Zone

Other Help Resources
Wait, there's more! Check out these Community sourced spaces for additional resources.

Zapier Help Center Hire an Expert

Learning Resources
All of our best learning resources can be found here.

Featured Articles Show & Tell Zapier's products AI Hub Zapier Tools Hub

Share your knowledge
Give back to the Community by sharing your automation wins and helping to answer questions.

Share your success See unanswered questions User Groups

Other Learning Resources
Some of our favorite additional ways to upskill your Zapier knowledge.

Zapier Learn Zapier Blog Zapier Webinars

Product Updates
Check out what is new and upcoming with Zapier with our regular product updates.

Product Updates

Early Access Program
Want to join Early Access? Learn more here.

📌  We do our best to ensure that the code in these articles works as advertised, but please be aware that Zapier Support does not officially help with code steps due to their advanced nature. Feel free to comment on the article or ask in the Zapier Community, where we have code-savvy users.

The Purpose

Find the first and/or last index position of an item in an array.

  • Use indexOf() to get the first index position for a value.
  • Use lastIndexOf() to get the last index position for a value.

NOTE: Both methods will return -1 if the value is not found.

How to Configure

Copy the Code

let A1 = inputData.A1.split(","); // splits by the comma delimiter to create an array
let Find = inputData.Find; // value to find in the array

let IndexFirst = A1.indexOf(Find); // finds the first index position
let IndexLast = A1.lastIndexOf(Find); // finds the last index position

output = t{IndexFirst, IndexLast, A1}];

The Results

NOTE: Index positions start at 0!

Contribution by Troy Tessalone

Troy is a Certified Zapier Expert who automates workflows with no-code and low-code apps to help clients save time and make money.

Terms & Conditions