How to enter a number (x) and add up all the previous numbers?

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How to enter a number and make the sum of all previous numbers, EXAMPLE: I enter the number 5, it will add up to 0+1+2+3+4 = 10 ! He will add and give the answer.

I have to use the FOR command.

My command has gone like this, but it’s not correct.

function somatoria(x){
  var soma = 0;

  for(var i = 0;  i < x;  i++) {
  soma = i +  i;}

  return soma;
}
javascript for functional-programming

  • Tries soma += i

  • 1

    soma = soma + i; or, simplifying, soma += i

  • The only difference for this one is that it goes 2 in 2 and here goes in 1, which in this part is already right.

  • It worked out guys, so much that I messed up the code, I gave this shot, plus Brigadeo, people.

  • It just doesn’t make sense to start the variable i of the tie with 0, since 0 does not change the result. Then it could be var i = 1.

  • Function somatoria(x){ var soma = 0; for(var i = 0; i < x; i++) { soma = sum + i;} Return soma; }

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