Javascript IF and ELSE difficulty - Return result text on screen

Question

DOUBT: How to make an IF ELSE with javascript to display a text (Ex: Approved) when locating a given word (Ex: Green). My current code is this below, but it’s not working and I can’t find the problem. I’m a beginner with Javascript, so if anyone knows how to help me thank you!

var status_atual = 'Azul'; //

   if (status_atual = "Verde") {
  return 'Aprovado';
} else if (status_atual = "Vermelho") {
  return 'Reprovado';
} else if (status_atual = "Amarelo") {
  return 'Incompleto';
} else if (status_atual = "Azul") {
  return 'Novo';
} else {
  return 'Cor e status não identificados!';
}

I needed to have the result displayed in the table, just as it is done in PHP with the echo function, so for example:

<?php

$status_atual = 'Azul';

   if ($status_atual = 'Verde') {
  echo 'Aprovado';
} else if ($status_atual = 'Vermelho') {
  echo 'Reprovado';
} else if ($status_atual = 'Amarelo') {
  echo 'Incompleto';
} else if ($status_atual = 'Azul') {
  echo 'Novo';
} else {
  echo 'Cor e status não identificados!';
}

?>

Example of the IF ELSE result being displayed in the table:

Answer 1

In many programming languages, as well as in javascript, the operator = is not a comparator, but assigns the value to a variable.

In this case, substitute it, wherever you are making comparisons, for ==.

In Javascript there is also the operator ===. Try to read about the difference between the 2.

Follows fiddle of example: https://jsfiddle.net/jhtcsLw7/.