JSFiddle - React, Tailwind, and code Playground

JavaScript

function chooseOne(age) {
	text = ''
	if (age > 40) {
  	text += "age is 40ish, "
  } else if (age > 30) {
  	text += "age is 30ish, "
  } else if (age > 20) {
  	text += "age is 20ish, "
  } else {
  	text = "other than that"
  }
  console.log("chooseOne returns", text)
}

function chooseMultiple(age) {
	text = 'start check: '
	if (age > 40) {
  	text += "age is more than 40, "
  } 
  if (age > 30) {
  	text += "age is more than 30, "
  }
  if (age > 20) {
  	text += "age is more than 20, "
  }
  console.log("chooseMultiple returns", text)
}
chooseOne(31)
chooseMultiple(31)