我目前已经为“localStorage”添加了一些方法。
/**
*
* MOVED TO: https://github.com/iFind/html5MultidimensionalStorage
*
* This methods extends the default HTML5 Storage object and add support
* to set and get multidimensional data
*
* @example Storage.setObj('users.albums.sexPistols',"blah");
* @example Storage.setObj('users.albums.sexPistols',{ sid : "My Way", nancy : "Bitch" });
* @example Storage.setObj('users.albums.sexPistols.sid',"Other songs");
*
* @example Storage.getObj('users');
* @example Storage.getObj('users.albums');
* @example Storage.getObj('users.albums.sexPistols');
* @example Storage.getObj('users.albums.sexPistols.sid');
* @example Storage.getObj('users.albums.sexPistols.nancy');
*
* This is just a prototype and is not recommended to use at production apps
* USE AT YOUR OWN RISK
*
* @author Klederson Bueno <klederson@klederson.com>
* @author Gabor Zsoter <helo@zsitro.com>
*/
//Add Storage support for objects
Storage.prototype.__walker = function(path,o) {
//Validate if path is an object otherwise returns false
if(typeof path !== "object")
return undefined;
if(path.length === 0){
return o;
}
for(var i in path){
var prop = path[i];
//Check if path step exists
if(o.hasOwnProperty(prop)){
var val = o[prop];
if(typeof val == 'object'){
path.splice(0,1);
return this.__walker(path,val);
} else {
return val;
}
}
}
};
Storage.prototype.setObj = function(key, value) {
var key = encodeURIComponent(key);
var path = key.split('.');
//First level is always the localStorage key pair item
var _key = path[0];
var os = this.getItem(_key) !== null ? JSON.parse(this.getItem(_key)) : null; //general storage key pair element
path.splice(0,1);
if(os === null) {
os = {};
this.setItem(_key,JSON.stringify(os));
}
var innerWalker = function(path,o) {
//Validate if path is an object otherwise returns false
if(typeof path !== "object")
return undefined;
if(path.length == 1) {
o[path[0]] = value;
return o;
} else if(path.length === 0) {
os = value;
return os;
}
var val = null;
for(var i in path){
var prop = path[i];
//Check if path step exists
if(o.hasOwnProperty(prop)) {
val = o[prop];
if(typeof val == 'object'){
path.splice(0,1);
return innerWalker(path,val);
}
} else {
//create depth
o[prop] = {};
val = o[prop];
path.splice(0,1);
return innerWalker(path,val);
}
}
};
innerWalker(path,os);
this.setItem(_key,JSON.stringify(os));
};
Storage.prototype.getObj = function(key) {
var key = encodeURIComponent(key);
key = key.split('.');
//First level is always the localStorage key pair item
var _key = key[0];
var o = this.getItem(_key) ? JSON.parse(this.getItem(_key)) : null;
if(o === null)
return undefined;
key.splice(0,1);
return this.__walker(key,o);
};
在另一堂课中,我这样做:
define(['jquery', '_Errors'], function($, Errors) {
[...]
localStorage.getObj('blabla');
[...]
});
在我迁移到RequireJS之前,我只是将所有函数/原型放在一个名为functions.js的文件中 - 这还有可能吗?或者我是否需要指定我将在每个文件中使用的所有函数?
答案 0 :(得分:1)
您有两种常规选择来加载functions.js
文件:
加载修改RequireJS的Storage
的文件。这意味着将它放在自己的script
元素中。我会在加载之前加载它,以便RequireJS加载的所有内容都会受益于此文件所做的更改。
让RequireJS加载functions.js
。您需要以下配置:
paths: {
functions: "path/to/functions.js"
},
shim: {
functions: {
// This should be something that only your file creates.
// In some circumstances it is used by RequireJS to check whether something
// has loaded.
exports: 'Storage.prototype.getObj'
}
}
但是每个模块你需要使用functions
添加的函数需要在其依赖项中列出它:
define(['jquery', '_Errors', 'functions'], function ($, Errors) {
[...]
localStorage.getObj('blabla');
[...]
});
每当我加载进行修改的内容时,就会开始修改Element
,Node
或Storage
等内容,我更喜欢使用上面的第一个选项。我希望首先加载所有这些,以便之后的所有内容都能看到相同的环境。因此它全部加载在RequireJS之外。如果您发现性能因为加载了大量这些小文件而成为一个问题,那么您始终可以自定义优化步骤以连接这些文件,并在r.js
生成的包的开头添加它们。