trace execution in a javascript application

Question

Is there any automatical way to trace execution in a javascript application (in browser) ?
My need is to know according to the use case :

which functions are called
which functions call which functions

In fact, it's a code coverage by instrumentation (like Istanbul) but for runtime.

------------------------- EDIT -------------------------
I want to generate a map of functions used during execution.
Example :
1 - for use case #1 :
functA1 -> [functB3, functC2 -> [functE5, functD8 ] ]
functA2 -> [functT2]
functA3

With this kind of execution map, i can understand how the appl works
and compare execution between two releases.

Lalit Sachdeva · Accepted Answer · 2017-06-13 13:20:06Z

2

on chrome debugging is awesomely done:

ctrl + option + j
click on 'Sources'
and then go to "Event Listener Breakpoints" and choose the event that may call your function and after that where the function call is going just press the F10 on it will move to next statement to execute and so on. Please refer the screenshot: https://iamlalit.tinytake.com/sf/MTY5MDc1N181NjM1ODA1

answered Jun 13, 2017 at 13:20

Lalit Sachdeva

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smooth_atonal_sound · Accepted Answer · 2017-06-13 13:14:43Z

1

You can set breakpoints in the browser's sources tab. On chrome it's ctrl + option + j and click on 'Sources'. From there you set a breakpoint at the function you want and can trace what gets executed line by line.

Hope this helps.

answered Jun 13, 2017 at 13:14

smooth_atonal_sound

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1 Comment

asicfr Over a year ago

Thanks, but i search for a more complete solution like the capacity to create diagramm of execution

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