moth/example-puzzles/example/5/helpers.js

// jshint asi:true

function helperUpdateAnswer(event) {
  let e = event.currentTarget
  let value = e.value
  let inputs = e.querySelectorAll("input")
  
  if (inputs.length > 0) {
    // If there are child input nodes, join their values with commas
    let values = []
    for (let c of inputs) {
      if (c.type == "checkbox") {
        if (c.checked) {
          values.push(c.value)
        }
      } else {
        values.push(c.value)
      }
    }
    value = values.join(",")
  }

  // First make any adjustments to the value
  if (e.classList.contains("lower")) {
    value = value.toLowerCase()
  }
  if (e.classList.contains("upper")) {
    value = value.toUpperCase()
  }

  let answer = document.querySelector("#answer")
  answer.value = value
  answer.dispatchEvent(new InputEvent("input"))
}

function helperActivate(e) {
  e.addEventListener("input", helperUpdateAnswer)
}

function helperInit(event) {
  for (let e of document.querySelectorAll(".answer")) {
    helperActivate(e)
  }
}

if (document.readyState === "loading") {
  document.addEventListener("DOMContentLoaded", helperInit);
} else {
  helperInit();
}