[Mixin("String.prototype")]
public static class StringExtensions
{
    public static bool StartsWith(string value)
    {
        return ((string)Script.Literal("this")).IndexOf(value) == 0;
    }
}

// LivePreviewPlugin.cs
//
 
using System;
using System.Collections;
using System.Html;
using System.Runtime.CompilerServices;
using jQueryApi;
 
[Imported]