cX_300_100_50_50_50_1639623035767_writeaj.js

/*(<seed> ////write a javascript function to say Hello World!..

//but try to avoid this error: Unexpected identifier
</seed>)
<stop>});</stop>
<codeType>unknown</codeType>*/
function sayHelloWorld() {
    console.log('hello world!');
}




//write a function that takes two arguments and returns the sum of them
function add(a,b){
    return a+b;
}


//write a function that takes an array of numbers as an argument and returns the average value of those numbers
function avg(arr){
    let sum = 0;  //initialize our variable to 0 so we can add up every value in our array later on...

    for (let i=0;i<arr.length;i++){   //loop through each element in our array...
        sum += arr[i];                //add up all the values in our array and store it in our variable called "sum"..
    }

    return sum / arr.length;          //divide the total by the number of elements in our array to get the average value.. 
}
/*<output>{
    "console": {}
}
</output>*/