[Javascript Crocks] Safely Access Nested Object Properties with ' Proppath '

Source: Internet
Author: User

In this lesson, we'll look at the propPath utility function. We ' ll ask for a property multiple levels the deep in an object and get back a maybe. We'll get a when the property exists on our path and a if any part of the Just Nothing path is undefined .

ConstProppath = require ('Crocks/maybe/proppath')Constuser ={username:'Tester', Email:'[email protected]', Address: {street:'111 E. West St', City:'Anywhere', State:'PA', PostalCode:'19123-4567'    }};ConstGetpostalcode = Proppath (['Address','PostalCode']);ConstZip = Getpostalcode (user). Option ('Not available'); Console.log (Zip)//' 19123-4567 '

[Javascript Crocks] Safely Access Nested Object Properties with ' Proppath '

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