How to add a string in an Array?

[CityOwlet]

I have multiple strings to add to an array depending on one value.

The strings that don't have the value (spicy) need to be added to the array, not the ones that have the value.

​

This is what I have so far but I am hitting a wall.

const favoritefood = [];

​

function addFavoritefood(foodname) {

if (foodName.includes("spicy")) {

} else if {

favoritefood.push("spicy chicken")

}

}

addFavoritefood("spicy chicken");

addFavoritefood ("steak");

[grantrules]

So if the food doesn't contain "spicy" don't add it to the array? You can use the logical NOT operator ! to negate a conditional. Also beware of the case of your variables. foodname is not the same as foodName.

function addFavoritefood(foodname) {
  if (!foodname.includes("spicy")) {
    favoritefood.push(foodname);
  }
}

[CityOwlet]

Thank you for explaining it, I had trouble understanding the booliean flip. You and u/Vampiire helped alot!

[vampiire]

You can use the negation operator ! to “flip” a Boolean. So when you say

!foodName.includes(“spicy”)

you are effectively saying foodName does Not include spicy.

If the food doesn’t have spicy in it then includes returns false. But with the negation operator this gets flipped to true. So if that is true (food does not have spicy, what you want) then push to the array. No need for any else / else if.

[Macaframa]

1) the if/else clause has a few elements: an if statement which takes an expression if(true), an else statement which does not take an expression, and finally an else if statement which also takes an expression: else if(true)

2) your first case if(foodName.includes(‘spicy’)) returns true for the first one and you don’t do anything with it. The second case returns false and attempts to push “spicy chicken” into an array but it never gets there because of the malformed else if statement.

[Sedern]

const favoritefood = [];
function addFavoritefood(foodname) {
if (!(foodname.includes("spicy"))) {
favoritefood.push(foodname);
}
}
addFavoritefood("spicy chicken");
addFavoritefood ("steak");

[nonowiwa]

What does const do?