Add documentation to README

README.md

@@ -97,10 +97,10 @@ See [examples](https://github.com/dotenv-org/examples) of using dotenv with vari
 
 Dotenv exposes two functions:
 
-* `dotenv.config`
-* `dotenv.parse`
+* `config`
+* `parse`
 
-### `dotenv.config`
+### Config
 
 `config` will read your `.env` file, parse the contents, assign it to
 [`process.env`](https://nodejs.org/docs/latest/api/process.html#process_process_env),
@@ -124,7 +124,7 @@ You can additionally, pass options to `config`.
 
 Default: `path.resolve(process.cwd(), '.env')`
 
-You may specify a custom path if your file containing environment variables is located elsewhere.
+Specify a custom path if your file containing environment variables is located elsewhere.
 
 ```js
 require('dotenv').config({ path: '/custom/path/to/.env' })
@@ -134,7 +134,7 @@ require('dotenv').config({ path: '/custom/path/to/.env' })
 
 Default: `utf8`
 
-You may specify the encoding of your file containing environment variables.
+Specify the encoding of your file containing environment variables.
 
 ```js
 require('dotenv').config({ encoding: 'latin1' })
@@ -144,13 +144,23 @@ require('dotenv').config({ encoding: 'latin1' })
 
 Default: `false`
 
-You may turn on logging to help debug why certain keys or values are not being set as you expect.
+Turn on logging to help debug why certain keys or values are not being set as you expect.
 
 ```js
 require('dotenv').config({ debug: process.env.DEBUG })
 ```
 
-### `dotenv.parse`
+##### Override
+
+Default: `false`
+
+Override any environment variables that have already been set on your machine with values from your .env file.
+
+```js
+require('dotenv').config({ override: true })
+```
+
+### Parse
 
 The engine which parses the contents of your file containing environment
 variables is available to use. It accepts a String or Buffer and will return
@@ -169,7 +179,7 @@ console.log(typeof config, config) // object { BASIC : 'basic' }
 
 Default: `false`
 
-You may turn on logging to help debug why certain keys or values are not being set as you expect.
+Turn on logging to help debug why certain keys or values are not being set as you expect.
 
 ```js
 const dotenv = require('dotenv')

lib/main.d.ts

@@ -3,16 +3,13 @@
 
 export interface DotenvParseOptions {
   /**
+   * Default: `false`
+   *
    * Turn on logging to help debug why certain keys or values are not being set as you expect.
-   * Defaults to false.
+   *
+   * example: `dotenv.parse('KEY=value', { debug: true })`
    */
   debug?: boolean;
-
-  /**
-   * Override environment variables that have already been set on your machine with values from your .env file.
-   * Defaults to false.
-   */
-  override?: boolean;
 }
 
 export interface DotenvParseOutput {
@@ -25,7 +22,7 @@ export interface DotenvParseOutput {
  * See https://docs.dotenv.org
  *
  * @param src - contents to be parsed. example: `'DB_HOST=localhost'`
- * @param options - additional options. example: `{ debug: true, override: false }`
+ * @param options - additional options. example: `{ debug: true }`
  * @returns an object with keys and values based on `src`. example: `{ DB_HOST : 'localhost' }`
  */
 export function parse<T extends DotenvParseOutput = DotenvParseOutput>(
@@ -35,24 +32,38 @@ export function parse<T extends DotenvParseOutput = DotenvParseOutput>(
 
 export interface DotenvConfigOptions {
   /**
+   * Default: `path.resolve(process.cwd(), '.env')`
+   *
    * Specify a custom path if your file containing environment variables is located elsewhere.
+   *
+   * example: `require('dotenv').config({ path: '/custom/path/to/.env' })`
    */
   path?: string;
 
   /**
+   * Default: `utf8`
+   *
    * Specify the encoding of your file containing environment variables.
+   *
+   * example: `require('dotenv').config({ encoding: 'latin1' })`
    */
   encoding?: string;
 
   /**
+   * Default: `false`
+   *
    * Turn on logging to help debug why certain keys or values are not being set as you expect.
-   * Defaults to false.
+   *
+   * example: `require('dotenv').config({ debug: process.env.DEBUG })`
    */
   debug?: boolean;
 
   /**
-   * Override environment variables that have already been set on your machine with values from your .env file.
-   * Defaults to false.
+   * Default: `false`
+   *
+   * Override any environment variables that have already been set on your machine with values from your .env file.
+   *
+   * example: `require('dotenv').config({ override: true })`
    */
   override?: boolean;
 }

lib/main.js

@@ -14,7 +14,6 @@ const NEWLINES_MATCH = /\r\n|\n|\r/
 // Parses src into an Object
 function parse (src, options) {
   const debug = Boolean(options && options.debug)
-  const override = Boolean(options && options.override)
   const obj = {}
 
   // convert Buffers before splitting into lines and processing