Is there a method to reduce conditions?

Is it possible to reduce all the conditions to one single condition?

Long code for example:

  let one = 'one'
  let two = 'two'
  let three = 'three'
  let four = 'four'
  if(one = 'one'){
    if(two = 'two'){
      if(three = 'three'){
        if(four = 'four'){

        }
      }
    }
  }

Can it be just one line?

>Solution :

Two changes must be made
so

let one = 'one'
let two = 'two'
let three = 'three'
let four = 'four'
if(one === 'one' && two === 'two' && three === 'three' && four === 'four'){

}

The first change is adding &&
The second change is replacing = with ===