helperFunctions.js

// Manipulates responseField to render a formatted and appropriate message
const renderResponse = (res) => {
  // Displays either message depending on results
  if(res.errors){
    responseField.innerHTML = "<p>Sorry, couldn't format your URL.</p><p>Try again.</p>";
  } else {  
    responseField.innerHTML = `<p>Your shortened url is: </p><p> ${res.shortUrl} </p>`;
  }
}

// Manipulates responseField to render an unformatted response
const renderRawResponse = (res) => {
  // Displays either message depending on results
  if(res.errors){  
    responseField.innerHTML = "<p>Sorry, couldn't format your URL.</p><p>Try again.</p>";
  } else {
    // Adds line breaks for JSON
    let structuredRes = JSON.stringify(res).replace(/,/g, ", \n");
    structuredRes = `<pre>${structuredRes}</pre>`;
    responseField.innerHTML = `${structuredRes}`;
  }
}

// Renders the JSON that was returned when the Promise from fetch resolves.
const renderJsonResponse = (response) => {
  // Creates an empty object to store the JSON in key-value pairs
  let rawJson = {}
  for(let key in response){
    rawJson[key] = response[key]
  }
  // Converts JSON into a string and adding line breaks to make it easier to read
  rawJson = JSON.stringify(rawJson).replace(/,/g, ", \n")
  // Manipulates responseField to show the returned JSON.
  responseField.innerHTML = `<pre>${rawJson}</pre>`
}