# How to install a previous exact version of a NPM package?

To install a specific version of an npm package, you can use the `npm install` command along with the package name and the desired version number. Here's the syntax:

```bash
npm install <package_name>@<version_number>
```

Replace `<package_name>` with the name of the package and `<version_number>` with the specific version you want to install.

For example, to install version 1.2.3 of a package named "example-package," you would run:

```bash
npm install example-package@1.2.3
```

Additionally, you can use other version specifiers, such as tilde (`~`) or caret (`^`), to specify version ranges. For example:

```bash
npm install example-package@^1.2.0
```

This would install the latest version compatible with version 1.2.0.

If you want to install a specific version globally, you can use the `-g` flag:

```bash
npm install -g example-package@1.2.3
```

Keep in mind that specifying exact versions may lead to potential issues in the long term, as you won't automatically receive updates. It's generally a good practice to use version ranges or semver specifiers when possible.