gistfile1.txt

function code_block()
{

function print_something()
{
console.log(something);
}

date = new Date();
function task_1()
{
var something = long_operation();
print_something();
}();

if (new Date() - date > slow_script_interval)
 window.setTimeout(task_2, 0);
else
task_2();

function task_2()
{
var something = long_operation();
print_something();
}

}