lenye_base/long_unique.js

基础方法

'use strict';

/**
 * Long string unique
 */
function longUnique(target) {
  var json = {};

  for (var index = 0; index < target.length; index++) {
    if (!json[target[index]]) {
      json[target[index]] = -1;
    }
  }

  var longString = '';

  for (var _index = 0; _index < target.length; _index++) {
    if (json[target[_index]]) {
      json[target[_index]] = 0;
      longString = longString + target[_index];
    }
  }

  return longString;
}

module.exports = longUnique;