CODEWITHSUNDEEP
flutterdartsemantic-versioning
Thanoss
Thanoss

Reputation: 543

what does ^ mean when declaring a version of a library in flutter

I see the symbol ^ a lot when a version is declared in a flutter pubspec file. how is:

http: ^0.13.3 different from http: 0.13.3 or even this http: '0.13.3'

Upvotes: 2

Views: 1246

Answers (2)

Eslam Adel
Eslam Adel

Reputation: 1189

There are major, minor, and patch represent the different releases of a package.

npm uses the tilde (~) and caret (^) to designate which patch and minor versions to use respectively.

So if you see ~1.0.2 it means to install version 1.0.2 or the latest patch version such as 1.0.4. If you see ^1.0.2 it means to install version 1.0.2 or the latest minor or patch version such as 1.1.0.

But if in your npm package.json file you’re referencing a package that hasn’t reached version 1.0 yet, using the caret symbol will only grab the patch version.

Source: https://michaelsoolee.com/npm-package-tilde-caret/

Upvotes: 1

Rohan Thacker
Rohan Thacker

Reputation: 6357

pub.dev packages use SemVer or semantic versioning.

The ^ character means “compatible with”

So taking the example

How is http: ^0.13.3 different from http: 0.13.3 or even this http: '0.13.3'

Would mean >=0.13.3 <1.0.0

You can an explanation of all modifiers at Semver cheatsheet

Upvotes: 3

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