Manipulate Arrays With .unshift()

Manipulate Arrays With .unshift()
0

#1

Tell us what’s happening:

Your code so far


// Example
var ourArray = ["Stimpson", "J", "cat"];
ourArray.shift(); // ourArray now equals ["J", "cat"]
ourArray.unshift("Happy"); 
// ourArray now equals ["Happy", "J", "cat"]

// Setup
var myArray = [["John", 23], ["dog", 3]];
myArray.shift();

// Only change code below this line.
myArray.unshift(["paul", 35]);
console.log(myArray);

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; 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/manipulate-arrays-with-unshift


#2

Review the instructions carefully. JavaScript is case-sensitive.

Also, in the future, please fill out the Tell us what’s happening section by asking a specific question related to the challenge, so we don’t have to guess what kind of help you are needing.

Thank you.


#3

I really don’t know where the error is coming from as believe the code is correct.
I did something like this using .push()

Add ["Paul",35] to the beginning of the myArray variable using unshift() - This is the instruction

Solution:
var myArray = [[“John”, 23], [“dog”, 3]];

myArray.shift();

// Only change code below this line.

myArray.unshift([“paul”, 35]);

console.log(myArray);

But is not working


#4

Look at the first element of the array in your unshift compared to the first element the instructions want you to use.


#5

Oh no I can’t believe I couldn’t figure the case.

Thanks Randell.


#6

That is the first thing you should always look for in these challenges. Case-related errors can be very frustrating.


#7

The problem is I always preached about case-sensitive to others smile.