nx/docs/generated/devkit/addDependenciesToPackageJson.md

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# Function: addDependenciesToPackageJson
**addDependenciesToPackageJson**(`tree`, `dependencies`, `devDependencies`, `packageJsonPath?`, `keepExistingVersions?`): [`GeneratorCallback`](../../devkit/documents/GeneratorCallback)
Add Dependencies and Dev Dependencies to package.json
For example:
```typescript
addDependenciesToPackageJson(tree, { react: 'latest' }, { jest: 'latest' });
```
This will **add** `react` and `jest` to the dependencies and devDependencies sections of package.json respectively.
#### Parameters
| Name | Type | Description |
| :---------------------- | :------------------------------------ | :-------------------------------------------------------------------------- |
| `tree` | [`Tree`](../../devkit/documents/Tree) | Tree representing file system to modify |
| `dependencies` | `Record`\<`string`, `string`\> | Dependencies to be added to the dependencies section of package.json |
| `devDependencies` | `Record`\<`string`, `string`\> | Dependencies to be added to the devDependencies section of package.json |
| `packageJsonPath?` | `string` | Path to package.json |
| `keepExistingVersions?` | `boolean` | If true, prevents existing dependencies from being bumped to newer versions |
#### Returns
[`GeneratorCallback`](../../devkit/documents/GeneratorCallback)
Callback to install dependencies only if necessary, no-op otherwise