Conditional breakpoint after X iterations of a loop

quack.js

// Example of conditional breakpoint ( in code ) after X iterations
for(var i=0, __iterations_left_before_break=50; (--__iterations_left_before_break||debugger),i<1e5;i++)
{
  // body of the loop
}

/*

To do the same in devtool, you can put a breakpoint on the first statement of the loop,
right-click on the breakpoint > Edit condition.
Write  an expression that is truthy when you want to break, and falsy otherwise.
Be wary of trailing semicolon on the condition as it would behave as if followed by an
empty statement and thus never break ;) 

*/