Bryan, Nice code. Just curious: what's the advantage of this over using JavaScript's built-in custom oop features, available in v4 and higher browsers? It would likely be simpler:
http://developer.netscape.com/evangelism/docs/articles/oop-javascript/ -Ron > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On > Behalf Of Bryan LaPlante > Sent: Tuesday, April 30, 2002 8:59 PM > To: KCFusion > Subject: [KCFusion] Client side variable storage > > > Hey all, > I was messing around today and got to thinking how tired I am > of the limited > storage capability on the clients browser. I wrote this little > script that > will store name value pairs like a collection in cf only on the > client side. > I called the file pasted below collection.js and if you have ever used > HashMap in Java you will see the similarity. If any one can use > this here it > is. > > /* > Collection.js > > AUTHOR: > Bryan LaPlante > [EMAIL PROTECTED] > Network Web Applications > http://www.netwebapps.com > > DESCRIPTION: Collection > creates a new collection of name=value pairs and provides methods for > retrieving one or a list of keys or values. > > CREATE A COLLECTION: > myCollection = new Collection(); > > METHODS > myCollection.clear(); // Removes all of the key value pairs > but does not > destroy the collection. > myCollection.put(key,value); //Creates an entry into the collection > myCollection.getValue(key); // does a case sensitive search > for a key in > the collection and returns it's value > myCollection.getValueNoCase(key); // does a case insensitive > search for a > key in the collection and returns it's value > myCollection.getKeyArray(); //returns an array of keys > myCollection.getValueArray(); // returns an array of values > myCollection.getKeyList(delim); //returns a list of keys > myCollection.getValueList(delim); // returns a list of values > > EXAMPLE: > Un comment the code at the bottom of the script to see > an example of how to use the collection. > */ > > function Map(key,val){ > this.key = key; > this.val = val; > } > > function Collection(){ > this.collectionMap = new Array(); > this.clear = clearMap; > this.put = putMap; > this.getValue = getValue; > this.getValueNoCase = getValueNoCase; > this.getKeyArray = getKeyArray; > this.getValueArray = getValueArray; > this.getKeyList = getKeyList; > this.getValueList = getValueList; > } > > function putMap(key,val){ > existingKeys = this.getKeyArray(); > isUniqueKey = true; > > for(i=0; i<existingKeys.length; i++){ > if(existingKeys[i] == key){ > isUniqueKey = false; > this.collectionMap[i].val=val; > break; > } > } > > if(isUniqueKey){ > this.collectionMap[this.collectionMap.length]= new Map(key,val); > } > } > > function clearMap(){ > this.collectionMap.length=0; > } > > function getValue(key){ > for(i=0; i<this.collectionMap.length; i++){ > if(this.collectionMap[i].key == key){ > return this.collectionMap[i].val; > } > } > return null; > } > > function getValueNoCase(key){ > for(i=0; i<this.collectionMap.length; i++){ > if(this.collectionMap[i].key.toLowerCase() == key.toLowerCase()){ > return this.collectionMap[i].val; > } > } > return null; > } > > function getKeyArray(){ > keyArray = new Array(); > for(i=0; i<this.collectionMap.length; i++){ > keyArray[keyArray.length]=this.collectionMap[i].key; > } > return keyArray; > } > > function getKeyList(delim){ > keyList = ""; > for(i=0; i<this.collectionMap.length; i++){ > if(i == this.collectionMap.length-1){ > delim=""; > } > keyList += (this.collectionMap[i].key + delim); > } > return keyList; > } > > function getValueArray(){ > valueArray = new Array(); > for(i=0; i<this.collectionMap.length; i++){ > valueArray[valueArray.length]=this.collectionMap[i].val; > } > return valueArray; > } > > function getValueList(delim){ > valueList = ""; > for(i=0; i<this.collectionMap.length; i++){ > if(i == this.collectionMap.length-1){ > delim=""; > } > valueList += (this.collectionMap[i].val + delim); > } > return valueList; > } > /* > /////------- Uncomment this section for > testing --------/////////////////////// > > //create the collection > collection = new Collection(); > > // clear the collection > collection.clear(); > > // add name value pairs to the collection > collection.put("bryan","user1"); > collection.put("bruce","user2"); > collection.put("dan","user3"); > > // putting bryan again will update the previous entry's value to user4 > collection.put("bryan","user4"); > > alert(collection.getKeyList(",")); > alert(collection.getValueList("|")); > // get an array of keys > myKeys = collection.getKeyArray(); > > // get an array of values > myVals = collection.getValueArray(); > > //Output the names and their values into an html list item > document.write("<ul>"); > for(c=0; c<myKeys.length; c++){ > document.write("<li>" + myKeys[c].toString() +"=" + > myVals[c].toString()); > } > document.write("<ul>"); > */ > > > Bryan LaPlante > President > Network Web Applications Inc. > > > > ______________________________________________________________________ > The KCFusion.org list and website is hosted by Humankind Systems, Inc. > List Archives........ http://www.mail-archive.com/cf-list@kcfusion.org > Questions, Comments or Glowing Praise.. mailto:[EMAIL PROTECTED] > To Subscribe.................... mailto:[EMAIL PROTECTED] > To Unsubscribe................ mailto:[EMAIL PROTECTED] > ______________________________________________________________________ The KCFusion.org list and website is hosted by Humankind Systems, Inc. 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