Can't Pass all of the test in Golf Code Challenge

Tell us what’s happening:
Can anyone tell me what’s wrong in it, because I can’t pass all the tests and I think I have written the code correctly?

Your code so far

var names = ["Hole-in-one!", "Eagle", "Birdie", "Par", "Bogey", "Double Bogey", "Go Home!"];
function golfScore(par, strokes) {
  // Only change code below this line  
  if (strokes == 1){
    return names[0];
  else if (strokes <= par-2){
    return names[1];
  else if (strokes == par-1){
    return names[2];
  else if (strokes == par){
    return names[3];
  else if (strokes = par+1){
    return names[4];
  else if (strokes == par+2){
    return names[5];
  else if (strokes >= par+3){
    return names[6];
  return "Change Me";
  // Only change code above this line
// Change these values to test
golfScore(4, 6);

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Link to the challenge:

Look very carefully at your else if condition. You are assigning a value to strokes instead of making a comparison to strokes.