C#

static int Test2(int[] array)
{
    if (array.Length > 0)
        return array[0];
    throw new Exception();
}

static int Test1(int[] array)
{
    foreach (int i in array)
        return i;
    throw new Exception();
}

push        rbx 
sub         rsp,20h 
mov         rax,qword ptr [rcx+8] 
test        eax,eax 
jle         0000000000000020 ; goes to throw new Exception()
test        rax,rax 
jbe         0000000000000040 ; unreachable?? code at 40 seems to throw some exception
mov         eax,dword ptr [rcx+10h] ; get array[0]
add         rsp,20h 
pop         rbx 
ret 

Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None); 
    config.AppSettings.Settings["test"].Value = "blah";       
    config.Save(ConfigurationSaveMode.Modified);
    ConfigurationManager.RefreshSection("appSettings");