DEV Community

Cover image for 5 Flutter Dart Tips.
Dreamy Developer
Dreamy Developer

Posted on

3 2

5 Flutter Dart Tips.

1) .any

This is a list of Languages

.any

And you can use the .any to check whether any elements of this iterable to satisfy the test.

In this example we verify if any language starts with the letter D or B

The first one is true and the second one is false.

result

2) .padRight .padLeft

You can add characters before or after a string if you use the padLeft or padRight.

padleft

This number is the total amount of character you will have and

total

This is what will be added inside your string

string

You can do the same thing with the padRight.

3) .shuffle()

It is sometimes useful to randomize items inside the list

shuffle

For this you can use the shuffle and you can see that everything is now randomized.
ran

4) String Multiplication

It is possible to use string multiplication with dart.

This example will print x times your string.
String Multiplication

5) .toSet()

If you have a list of repeated items.

toset

You can use the .toSet() to remove all the duplicates and this is the final result.

res

Sentry mobile image

Mobile Vitals: A first step to Faster Apps

Slow startup times, UI hangs, and frozen frames frustrate users—but they’re also fixable. Mobile Vitals help you measure and understand these performance issues so you can optimize your app’s speed and responsiveness. Learn how to use them to reduce friction and improve user experience.

Read the guide →

Top comments (0)

SurveyJS custom survey software

JavaScript Form Builder UI Component

Generate dynamic JSON-driven forms directly in your JavaScript app (Angular, React, Vue.js, jQuery) with a fully customizable drag-and-drop form builder. Easily integrate with any backend system and retain full ownership over your data, with no user or form submission limits.

Learn more

Best practices for optimal infrastructure performance with Magento

Running a Magento store? Struggling with performance bottlenecks? Join us and get actionable insights and real-world strategies to keep your store fast and reliable.

Tune in to the full event

DEV is partnering to bring live events to the community. Join us or dismiss this billboard if you're not interested. ❤️