Profile Lookup - Alternative Solution Error?!

JavaScript
1

Tell us what’s happening:
Hello there, I’m trying to use an alternative solution for JS exercise “Profile lookup” as shown below without using the hasOwnProperty(). For some reason my code is skipping the first If statement even though the input values “Akira” and “likes” should both return the correct boolean to make the && true. Please see my code comments before and if any has ideas as to the flaws in my logic/code would really appreciate it.
Thank you
SL

Your code so far


//Setup
var contacts = [
    {
        "firstName": "Akira",
        "lastName": "Laine",
        "number": "0543236543",
        "likes": ["Pizza", "Coding", "Brownie Points"]
    },
    {
        "firstName": "Harry",
        "lastName": "Potter",
        "number": "0994372684",
        "likes": ["Hogwarts", "Magic", "Hagrid"]
    },
    {
        "firstName": "Sherlock",
        "lastName": "Holmes",
        "number": "0487345643",
        "likes": ["Intriguing Cases", "Violin"]
    },
    {
        "firstName": "Kristian",
        "lastName": "Vos",
        "number": "unknown",
        "likes": ["JavaScript", "Gaming", "Foxes"]
    }
];


function lookUpProfile(name, prop){
    for (var col = 0; col < contacts.length; col++){  //Create a for loop that tests every object from 0 - 3 (so all 4 objects)
        
            if (contacts[col].firstName === name && contacts[col].prop !== undefined){  //Locate value at the object index of [col] and if that is true and also the property is not undefined move to return the property??
                return contacts[col].prop;
            } else if(contacts[col].firstName !== name) { return "No such contact";} //If the name doesn't match 
            else { return "No such property";}  
    }
    }
  
// Change these values to test your function
lookUpProfile("Akira", "likes");

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36.

Link to the challenge:
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/basic-javascript/profile-lookup

2

You can’t use object notation to access an object using a variable, you should use the brackets notation. What you’re doing is trying to access the key named prop inside the object.

contacts[col].prop

should be

contacts[col][prop]

I’m not sure if this is the only error, if you still can’t get it to work please let me know.

3

Thank you very much! That certainly helped - I also managed to fix the code in a slightly uneloquent basic way but gets the job done :slight_smile:

//Setup
var contacts = [
{
“firstName”: “Akira”,
“lastName”: “Laine”,
“number”: “0543236543”,
“likes”: [“Pizza”, “Coding”, “Brownie Points”]
},
{
“firstName”: “Harry”,
“lastName”: “Potter”,
“number”: “0994372684”,
“likes”: [“Hogwarts”, “Magic”, “Hagrid”]
},
{
“firstName”: “Sherlock”,
“lastName”: “Holmes”,
“number”: “0487345643”,
“likes”: [“Intriguing Cases”, “Violin”]
},
{
“firstName”: “Kristian”,
“lastName”: “Vos”,
“number”: “unknown”,
“likes”: [“JavaScript”, “Gaming”, “Foxes”]
}
];

function lookUpProfile(name, prop){
for (var col = 0; col < contacts.length; col++){
if(contacts[col][“firstName”] === name && contacts[col][prop] !== undefined){ return contacts[col][prop];}}
for (var col = 0; col < contacts.length; col++){
if(contacts[col][“firstName”] !== name){ return “No such contact”;} else {return “No such property”;}

}}