LocalStorage Utils

README.md

localStorage Utils

Using

var pryStorage = new localStorageDB();

Set

pryStorage.set("test", "test value") // return boolean

Get

With key name, you can get value of key in localStorage db.

pryStorage.get("test") // return value

Get All

it's for get all records in localStorage and return Array<> of records.

pryStorage.getAll() // return Array<>

Remove

Remove Key in LocalStorage

pryStorage.remove("test") // return boolean

Clear All

Clear LocalStorage of Records.

pryStorage.clearAll() // return boolean

Check Browser Support

If your Browser does not support the localStorage, this function return false.

pryStorage.checkifSupport() // return boolean

localStorage.js

// localStorage
var localStorageDB = function(){
	this.key = this.key || 'unknown';
	this.value = this.value || {};
}
// insert into localStorage
localStorageDB.prototype.set = function(key, value){
	if(this.checkifSupport()){
		try{
			this.key = key;
			this.value = value;
			window.localStorage.setItem(this.key, this.value);
		}catch(e){
	    		throw new TypeError('Exceeded Storage Quota!');
			return true;
		}
	}else{
		throw new TypeError("No support. Use a fallback such as browser cookies or store on the server.");
		return false;
	}	
}
localStorageDB.prototype.get = function(key){
	try{
		this.key = key;
		var data = window.localStorage.getItem(this.key);
		if(data && typeof(data) === 'object'){
			return JSON.parse(data);
		}else{
			return data;
		}
	}catch(e){
		return null;
	}
}
localStorageDB.prototype.getAll = function(){
	var array = new Array();
	for(var i = 0; i < window.localStorage.length; i++){
		var key = localStorage.key(i);
		array.push(this.get(key));
	};
	return array;
}
localStorageDB.prototype.remove = function(key){
	this.key = key;
	try{
		window.localStorage.removeItem(this.key);
		if(window.localStorage.length == 0){
			this.clearAll();
		}
		return true;
	}catch(e){
		return false;
	}finally{
		if(this.get(this.key)){
			delete window.localStorage[this.key];
			if(window.localStorage.length == 0){
				this.clearAll();
			}
		}
	}
}
localStorageDB.prototype.clearAll = function(){
	try{
		window.localStorage.clear();
		return true;
	}catch(e){
		return false;
	}
}
localStorageDB.prototype.checkifSupport = function(){
	try{
	  return "localStorage" in window && window["localStorage"] !== null;
	}catch(e){
		return false;
	}
}