On Thu, Aug 4, 2016 at 6:50 AM, Abhishek Singh
<singhabhishek....@gmail.com> wrote:
>
>> On 03-Aug-2016, at 8:13 PM, Ben Noordhuis <i...@bnoordhuis.nl> wrote:
>>
>> Quick sanity check: what does Debug.showBreakPoints() print for that
>> function after setting the breakpoint?
>
> Just to confirm, is below the right way to leverage JS Debug API in a user 
> supplied JS code? (I tried setting up breakpoint against OnUpdate earlier)
>
> function OnUpdate(doc, meta) {
>         log(meta.key);
>
>         // Flags: —expose-debug-as debug
>         Debug = debug.Debug;
>         log(debug.showBreakPoints(OnUpdate))
>
>        if (meta.type === “json”) {
>                 log(doc);
>         }
>  }
>
> Above JS code doesn’t compile, error message:
>
> Exception message: undefined:5
>   Debug = debug.Debug;
>           ^
> ReferenceError: debug is not defined
>     at OnUpdate (<anonymous>:5:11)

You need to pass —expose-debug-as debug on the command line or through
v8::V8::SetFlagsFromString().

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