Require Node.js 8

.travis.yml

@@ -2,4 +2,3 @@ language: node_js
 node_js:
  - '10'
  - '8'
- - '6'

index.d.ts

@@ -2,5 +2,19 @@
 Get the real length of a string - by correctly counting astral symbols and ignoring [ansi escape codes](https://github.com/sindresorhus/strip-ansi).
 
 `String#length` errornously counts [astral symbols](https://web.archive.org/web/20150721114550/http://www.tlg.uci.edu/~opoudjis/unicode/unicode_astral.html) as two characters.
+
+@example
+```
+import stringLength from 'string-length';
+
+'🐴'.length;
+//=> 2
+
+stringLength('🐴');
+//=> 1
+
+stringLength('\u001B[1municorn\u001B[22m');
+//=> 7
+```
 */
-export default function stringLength(input: string): number;
+export default function stringLength(string: string): number;

index.js

@@ -2,7 +2,7 @@
 const stripAnsi = require('strip-ansi');
 const astralRegex = require('astral-regex');
 
-const stringLength = input => stripAnsi(input).replace(astralRegex(), ' ').length;
+const stringLength = string => stripAnsi(string).replace(astralRegex(), ' ').length;
 
 module.exports = stringLength;
 module.exports.default = stringLength;

package.json

@@ -10,7 +10,7 @@
  "url": "sindresorhus.com"
  },
  "engines": {
- "node": ">=6"
+ "node": ">=8"
  },
  "scripts": {
  "test": "xo && ava && tsd-check"