Learn Introductory JavaScript by Building a Pyramid Generator - Step 41

JavaScript
1

Tell us what’s happening:

I am struggling to answer this question i believe my rows array is incorrect.

Your code so far

const character = "#";
const count = 8;
const rows = [];

for (let i = 0; i < count; i = i + 1) {
  rows.push(i);
}

let result = ""


// User Editable Region

for (const value of row) {
  rows.push(result);
}

// User Editable Region


console.log(result);

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36

Challenge Information:

Learn Introductory JavaScript by Building a Pyramid Generator - Step 41

2

you need to iterate over the rows array. you can’t write of row because row doesn’t exist

3

can you simplify this, a bit confused

1 Like
4

See the example,

for (const value of iterable) {

}

You are being asked to iterate over the rows array, i.e. make the rows array the iterable of this loop

5

like this

for (const value of rows) {

}```
6

good, now there is an other request in the instructions you need to follow

Create a for...of loop to iterate through your rows array, assigning each value to a row variable.

7

not sure on how to do that

8

Right now you are assigning each value in rows to a variable named value. This is the new variable created to temporarily hold each value in the collection rows

Since rows is a collection of rows, then when you iterate over each one it makes sense to call the variable row

let numbers = [1,2,3]

for (const number in numbers) {
console.log(number)
}

Output:
1
2
3

9

so i have to update the let?

10

No,

for (const value of rows) {

Here you create a variable called “value” but you need it to be called “row”

…assigning each value to a row variable.

That’s what this part of the sentence means.

11

like this

for (const value of rows) {
const rows = 
}
12

Nope. You are still creating the “value” variable. “rows” already exists so you don’t want to redefine it.

I think you should see some more examples and get a good understanding of how this loop works:

https://www.w3schools.com/js/js_loop_forof.asp

https://www.geeksforgeeks.org/javascript-for-of-loop/

13

i have updated it to this

for (const value of rows) {
console.log(row); 
}
14

Where is the variable “row” created?

You create a variable called “value” but you need it to be called “row” instead

Change “value” to “row”

15

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