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JavaScript

Oscar Mauricio Lancheros Murillo
Oscar Mauricio Lancheros Murillo
3,608 Points

Hi, why my program is not entering to the loop?

function sumame(arr){
 console.log('Inicio del programa')
 var sum = 0;
 for (i=0; i < arr.lenght; i++){
   console.log("Inicio del ciclo")
   sum = sum + arr[i];
   console.log(`Ahora sum es ${sum}`)
 }
 console.log(`Finalmente sum es ${sum}`)
 return sum;
}

4 Answers

Steven Parker
Steven Parker
229,788 Points

Your problem is caused by a misspelled property name.

You wrote "arr.lenght" instead of "arr.length".

Also, while "sum = sum + arr[i]" is fine, you might like to know that there is a shorthand version that does the same thing: "sum += arr[i]".

Christof Baumgartner
Christof Baumgartner
20,864 Points

Can you put

        console.log(arr.lenght);

before the loop and tell if it shows a valid value. Or post an example array to be sure that it is valid.

Also don't omit the ";"-characters after your statements. They might cause the error as well. So write in the loop:

    console.log("Inicio del ciclo");
   sum = sum + arr[i];
   console.log(`Ahora sum es ${sum}`);
Steven Parker
Steven Parker
229,788 Points

That's because of the spelling — see my answer above. :arrow_heading_up: