管理依赖
When you want to add, upgrade, or remove dependencies there are a couple of different commands you need to know.
Each command will automatically update your
package.json
and
yarn.lock
files.
Adding a dependency
If you want to use another package, you first need to add it as a dependency. In order to do that you should run:
yarn add [package]
This will automatically add the [package]
to your dependencies in your
package.json
. It will also update your yarn.lock
to reflect the change.
{
"name": "my-package",
"dependencies": {
+ "package-1": "^1.0.0"
}
}
You can also add other types of dependencies using flags:
yarn add --dev
to add todevDependencies
yarn add --peer
to add topeerDependencies
yarn add --optional
to add tooptionalDependencies
You can specify which version of a package you want to install by specifying either a dependency version or a tag.
yarn add [package]@[version]
yarn add [package]@[tag]
The [version]
or [tag]
will be what gets added to your package.json
and then resolved against when installing the dependency.
For example:
yarn add package-1@1.2.3
yarn add package-2@^1.0.0
yarn add package-3@beta
{
"dependencies": {
"package-1": "1.2.3",
"package-2": "^1.0.0",
"package-3": "beta"
}
}
Upgrading a dependency
yarn upgrade [package]
yarn upgrade [package]@[version]
yarn upgrade [package]@[tag]
This will upgrade your package.json
and your yarn.lock
file.
{
"name": "my-package",
"dependencies": {
- "package-1": "^1.0.0"
+ "package-1": "^2.0.0"
}
}
Removing a dependency
yarn remove [package]
This will update your package.json
and your yarn.lock
file.