Question

Mini JAVASCRIPT Algorithm Exercise

"Sum All In Array"

Objectives

• Create a function that adds all numbers of a provided array (arr), accounting for non-integer values in arr.
• The output should return an integer.

Notes

Remember your data types? If the element is an integer (8), it should be added. If the element is a string with a number value ("8"), it should be added. If the element is not a number, or if it is a string with a non-number value, it should be ignored.

Use the following starter code below:

const sumAllInArray = arr => {

}

console.log(sumAllInArray(["-1", "a", 4, "-32", 8, "94"]))

//expected output: 73

Answer 1

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//---------------OUTPUT-------------------------

73

//-------------------------------------------------------

const sumAllInArray = arr => {

    let output=0;

    //loops over the array length

    for(let i=0;i<arr.length;i++){

        // isNaN return false if a string can be converted to number

        if(!isNaN(arr[i])){

            //adding to the output

            output=output+Number(arr[i])

        }

    }

    return output;

}

console.log(sumAllInArray(["-1", "a", 4, "-32", 8, "94"]))