hc-materials/es/core/localStorage.js

基于react的通用组件库

var ua = navigator.userAgent.toLowerCase();
var isIE = ua.indexOf('msie') > -1;
var userDataEl;
var d = document;
var tp = location.pathname.split('/');
tp[tp.length - 1] = '';
var path = encodeURIComponent(tp.join('/'));
var ls;
var newLocalStorage;

try {
  ls = window.localStorage;
} catch (e) {
  window.console.warn(e);
}

if (ls) {
  userDataEl = window.localStorage;
  newLocalStorage = {
    set: function set(k, v) {
      try {
        userDataEl.setItem(k, v);
      } catch (e) {
        return false;
      }

      return true;
    },
    get: function get(k) {
      try {
        return userDataEl.getItem(k);
      } catch (e) {
        return;
      }
    }
  };
} else if (isIE) {
  userDataEl = d.getElementById('_console_userdata');

  if (!userDataEl) {
    userDataEl = d.createElement('input');
    userDataEl.type = 'hidden';
    d.body.insertBefore(userDataEl, d.body.firstChild);

    try {
      userDataEl.addBehavior('#default#userData');
    } catch (e) {
      window.console.warn(e);
    }
  }

  newLocalStorage = {
    set: function set(k, v) {
      try {
        userDataEl.load(path);
        userDataEl.setAttribute(k, v);
        userDataEl.save(path);
      } catch (e) {
        return false;
      }

      return true;
    },
    get: function get(k) {
      try {
        userDataEl.load(path);
      } catch (e) {
        return;
      }

      return userDataEl.getAttribute(k);
    }
  };
} else {
  newLocalStorage = {
    set: function set() {},
    get: function get() {}
  };
}

export var localStorage = newLocalStorage;