APEX Dynamic Inline Help Utility Function

cnUtil.js

/**
* @namespace var cnUtil = {};
**/
var cnUtil = {};

/**
* @function setInlineHelp
* @example cnUtil.setInlineHelp('P3_JUSTIFICATION', 'Hello World');
**/
cnUtil.setInlineHelp = function  (itemID, inLineHelpText) {
  // Build the JQuery selector used to find the In-Line help element.
  let itemInlineHelpSelector = '#' + itemID + '_inline_help';

  // Debug Messages
  apex.debug.info( "itemID: " +  itemID);
  apex.debug.info( "inLineHelpText: " +  inLineHelpText);

  // Check if the In-Line Help element already exists for the item.
  if ($(itemInlineHelpSelector).length) {
    // If In-Line help already exists, replace the Existing text.
    $(itemInlineHelpSelector).text(inLineHelpText);
  } else {
    // If In-Line help does not exist. 
    // Build the JQuery selector to find the Page Item Container DIV.
    let containerSelector = '#' + itemID + '_CONTAINER .t-Form-inputContainer';
    // Build a new DIV with the necessary HTML elements and In-Line help text.
    let inlineHelpDiv     = '<div class="t-Form-inlineHelp"><span id="' + itemID + 
                            '_inline_help">' + inLineHelpText + '</span></div>';
    // Append the new DIV to the page item container DIV.
    $(containerSelector).append(inlineHelpDiv);
  }
};

/**
* @function clearInlineHelp
* @example cnUtil.clearInlineHelp('P3_JUSTIFICATION');
**/
cnUtil.clearInlineHelp = function  (itemID) {
  let inlineHelpSelector = '#' + itemID + '_inline_help';
  apex.debug.info( "itemID: " +  itemID);
  apex.debug.info( "inlineHelpSelector: " +  inlineHelpSelector);
  $(inlineHelpSelector).remove();
};