Symbols relating to package version:
| Name | Symbol | Description |
|---|---|---|
| Equality | = | Exact version i.e. =3.2.1 and 3.2.1 will both expect exactly version 3.2.1 |
| Less than/greater than etc.. | <, > | If >=3.2.1 would match 3.2.3, 3.4.7, and also 4.2.7 and same goes for greater than |
| Hyphen | - | Hyphen is (-) to use between two versions, that you specify. This is required when you need to maintain some legacy feature that you know will break at a specific version. Ex: 1.3.2 - 2.4.1. This will include both endpoints. |
| tilde | ~ | Mean approximate version. Ex. ~3 will accept any version that starts with 3. ~2.3.3 will allow values between 2.3.3 and 2.4, not including 2.4 |
| carat | ^ | It means compatible version. It only refuses changes to the major version. For example, ^3.4.1 will allow any version between that value and 4.0.0, not including version 4. |
Versioning Calculator Tool: npm semver calculator
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