kingsrp-samp/bot/util/ProgressBar.js

/**
 * Create a text progress bar
 * @param {Number} value - The value to fill the bar
 * @param {Number} maxValue - The max value of the bar
 * @param {Number} size - The bar size (in letters)
 * @return {{Bar: string, percentageText: string}} - The bar
 */
module.exports = (value, maxValue, size) => {
  const percentage = value / maxValue; // Calculate the percentage of the bar
  const progress = Math.round(size * percentage); // Calculate the number of square caracters to fill the progress side.
  const emptyProgress = size - progress; // Calculate the number of dash caracters to fill the empty progress side.

  const progressText = "▇".repeat(progress); // Repeat is creating a string with progress * caracters in it
  const emptyProgressText = "—".repeat(emptyProgress); // Repeat is creating a string with empty progress * caracters in it
  const percentageText = Math.round(percentage * 100) + "%"; // Displaying the percentage of the bar

  const Bar = progressText + emptyProgressText; // Creating the bar
  return { Bar, percentageText };
};