Check if a string has ANSI escape codes
$ npm install --save has-ansi
var hasAnsi = require('has-ansi'); hasAnsi('\u001b[4mcake\u001b[0m'); //=> true hasAnsi('cake'); //=> false
$ npm install --global has-ansi
$ has-ansi --help Usage has-ansi <string> echo <string> | has-ansi Exits with code 0 if input has ANSI escape codes and 1 if not
MIT © Sindre Sorhus