javascript - How to check existence of a deep property -

javascript - How to check existence of a deep property -

is there improve solution next code:

if (response && response.responsejson && response.responsejson.message) { //code }

what you're doing fine. looks little ugly, makes clear what's going on. if wanted to, set total look in try-catch block, poor practice , harder read/maintain.

i imagine want groovy's "safe navigation operator", do:

if (response?.responsejson?.message)

but javascript not have this.

javascript