bbo/es/truncate.js

bbo is a utility library of zero dependencies for javascript.

import './get_tag.js';
import './is_array.js';
import './is_string.js';
import './is_map.js';
import './is_set.js';
import size from './size.js';

/**
 * Truncates a string up to a specified length.
 * The default length is 3, and the truncated symbol defaults '...'
 */

var truncate = function (str) {
  var num = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 3;
  var len = size(str);
  return len > num ? str.slice(0, num > 3 ? num - 3 : num) + '...' : str;
};

export default truncate;