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Dart & Flutter: Get the Index of a Specific Element in a ListLast updated on July 27, 2021 A Goodman Loading... Loading... Post a comment report this ad In Dart, the List class has 4 methods that can help you find the index of a specific element in a list: Show
The examples below will help you understand them better.Advertisements Example 1: Finding the Index of a specific Map in a List of MapsLets say we have a list of people with information including id, name, and age. The first task is to find the index of the person whose id equals a given id (because the ids are unique we can have at most 1 result). The second task is to find the index of the last person whose age is greater than 80. The code: // main.dart void main() { final ListShare Tweet Telegram Subscribe Notify of I allow to use my email address and send notification about new comments and replies (you can unsubscribe at any time). Label {} [+] Name* Email* Label {} [+] Name* Email* 0 Comments Inline Feedbacks View all comments You May Also LikeDart: Convert Class Instances (Objects) to Maps and Vice Versa January 7, 2022 How to Flatten a Nested List in Dart December 3, 2021 Inheritance in Dart: A Quick Example December 3, 2021 Flutter & Dart: 3 Ways to Generate Random Strings November 24, 2021 Flutter & Dart: Displaying Large Numbers with Digit Grouping November 7, 2021 Using Static Methods in Dart and Flutter October 1, 2021 Prevent VS Code from Auto Formatting Flutter/Dart Code August 24, 2021 Dart: Converting a List to a Map and Vice Versa August 19, 2021 Dart: Checking whether a Map is empty August 17, 2021 Dart: Checking if a Map contains a given Key/Value August 17, 2021 Dart: How to Add new Key/Value Pairs to a Map August 17, 2021 Dart: How to Update a Map August 17, 2021 |