JavaScript ASP.NET like StringBuilder using the module pattern

12/29/2009

Here is a nicel ittle utility that will make your JavaScript code much cleaner while keeping the performance high: C#-like string builder.

Note that this "class" is using Douglas Crockford's module pattern, so not "new" operator is needed when creating an instance.

NameSpace.util = {
    stringBuilder : function (){
        
        /* StringBuilder
        ------------------------------
        
        //Description:
        works like a regular stringbuilder
        
        //Example:
        var sb = NameSpace.util.stringBuilder();
        sb.append("hi ");
        sb.append("dave");
        sb.append(" !");
        console.log(sb.toString());
        */

        var s = [];
        return {
            // appends
            append : function (v){
                if (v){
                    s.push(v);
                }
            },
            // clears
            clear : function (){
                s.length = 1;
            },
            // converts to string
            toString : function (){
                return s.join("");
            }
        }
    }
}