var toString = require('../lang/toString');
var WHITE_SPACES = require('./WHITE_SPACES');
var ltrim = require('./ltrim');
var rtrim = require('./rtrim');
    /**
     * Remove white-spaces from beginning and end of string.
     */
    function trim(str, chars) {
        str = toString(str);
        chars = chars || WHITE_SPACES;
        return ltrim(rtrim(str, chars), chars);
    }

    module.exports = trim;