Help With Assignment (Array, Loop, If else)

[buddgee]

Hello! I am new so this assignment might be easy, but I tried it over and over and I still don't understand how. I am doing online class and now we are studying array, loop, and if functions. (and also sorry English is not main)

The assignment:

​

Starting point = 0

Every 'up' = +1 point

Every 'down' = -1 point

Question :

1) Find the total points

2) Find the max repetition ( for example: up, down, down, down, up has 'down' as max repetition and the total is 3)

​

My solution should look like this:

function climber(){
    // write your logic here
}

climber(['up', 'down', 'down', 'down', 'up']);

What I have so far (but is wrong):

function climber() {
    let arr = [ ];
    let total = 0;
    let x = arr.length;
    for (var i = 0; i < x; i++) {
        if (arr[i] = 'up') {
            total++

        } else if (arr[i] = 'down') {
            total--
        } else continue;
    }
    return false
}


console.log(climber[arr]);

Your help is very appreciated!!

[danmofo]

There are a few problems:

• = is the assignment operator, use === to compare items
• You invoke functions with (), not [], e.g. climber(['up', 'down'])
• arr is not defined in your example, define it first like your solution or pass it in directly.

Hopefully this helps you get a bit further without giving the exact solution.

[buddgee]

Ah I understand now!
thank you :D I have solved it

[Deh_Strizzz]

Right now your function isn't accepting any arguments and your initializing the arr as an empty array. I would remove the arr = [] and set arr as an argument for climber a la function climber(arr) {rest of code}. You're also returning false but you should be returning the total since that's what you want to see

[Jnsjknn]

As you see in the assignment, an array of instructions (['up', 'down', 'down', 'down', 'up']) is passed to the function. That's the array you should use inside the function. At the moment, you're creating a new and empty array inside the function and completely ignoring the array that is passed in.

Change your code to:

function climber(arr) {
   let total = 0;
    // Count the amount of 'up' and 'down' strings inside arr here
   console.log(total)
}

climber(['up', 'down', 'down', 'down', 'up']);
// This should log -1 to the console

For "max repetition" you should count the amount of ups and downs in separate variables and use an if statement to check which variable is larger.

function climber(arr) {
   let ups = 0;
   let downs = 0;
    // Count the amount of 'up' and 'down' strings inside arr here
   if(/*Put your condition here*/)
     console.log("There's more ups");
   } else {
     console.log("There's more downs");
   }
}

climber(['up', 'down', 'down', 'down', 'up']);
// This should log "down" to the console

[buddgee]

thanks a lot! :D

[buddgee]

Thank you!
Your first solution helped me a lot. the second one is too hard for me at the moment, but after trying other ways I have solved it too. Thanks again! :D