gatsby-telemetry/lib/is-truthy.js

"use strict";

// Returns true for `true`, true, positive numbers
// Returns false for `false`, false, 0, negative integers and anything else
const isTruthy = value => {
  // Return if Boolean
  if (typeof value === `boolean`) return value; // Return false if null or undefined

  if (value === undefined || value === null) return false; // If the String is true or false

  if (value.toLowerCase() === `true`) return true;
  if (value.toLowerCase() === `false`) return false; // Now check if it's a number

  const number = parseInt(value, 10);
  if (isNaN(number)) return false;
  if (number > 0) return true; // Default to false

  return false;
};

module.exports = isTruthy;