JS Debugger with breakpoints

[DarkCat09]

Is it possible to make a javascript debugger as in Developer Tools where you can add breakpoint and view all variables values?
I think this can be done with proxy server which will insert code like dbg.breakpoint(); before lines where user clicked to add breakpoint.

[takashiharano]

It seems difficult to implement it directly in the form of breakpoints, but you can do something similar.

The debug.js has a function "log.p()" which can show the variable values. Prepare a function yourself for debugging like:

function breakpoint() {
  log.p(SOME_VALIABLE_YOU_WANT_TO_VIEW_1);
  log.p(SOME_VALIABLE_YOU_WANT_TO_VIEW_2);
  log.p(SOME_VALIABLE_YOU_WANT_TO_VIEW_3);
}

and then insert the function before lines where you want to debug.