Can you pl. help me understand what is the reason for the errors. I have commented the reason in CAPS on the particular lines. Objects for Lookups Topic function phoneticLookup(val) { var result = ""; // Only change code below this line var lookup = { "alpha": "Adams", "bravo": "…

No they don’t: contact[i].firstName is the same as contact[i]["firstName"]. Whatever you put after the dot is taken literal. So contact[i].firstName searches for property called firstName. Inside the brackets you can put an expression: var property = "firstName"; var obj = { firstName: "Bob" } /…

Not sure when to use . and when to use [ ] while accessing Objects. Why am I getting an error

BenGitter November 6, 2017, 7:40pm 2

Topic		Replies	Views
Profile lookup problem...why brackets and not dot notation?	3	1231	January 16, 2021
Using Objects for Lookups - with dot notation	3	1017	January 17, 2021
Why we can't use here dot operator? not only here but also in various problems i have seen dot or [ ] doesn't work same, only anyone of these worked JavaScript	7	619	February 2, 2021
Using Objects for Lookups - explanation	3	680	January 17, 2021
Using Objects for Lookups - Simple question I guess JavaScript	3	479	February 2, 2021

Not sure when to use . and when to use [ ] while accessing Objects. Why am I getting an error

Related topics