code: function evaluateCondition(conditionCode, variables) {
    let trimmedCondition = conditionCode.trim();
  
    if ($Debug) {
      if (!/^!?('[^']*'|"[^"]*")$/.test(trimmedCondition)) {
        throw new Error('Invalid expected value: ' + trimmedCondition);
      }
    }
  
    let negate = trimmedCondition.charAt(0) === '!';
  
    let expectedValue = trimmedCondition.slice(negate ? 2 : 1, -1);
  
    return negate
      ? expectedValue !== variables.$Env
      : expectedValue === variables.$Env;
  }
docs: Evaluates the provided JavaScript condition expression. The function uses
  eval, so frequent calls to it may impede performance.
  
  @param {string} conditionCode A JavaScript expression to evaluate.
  @param {Object<string, *>} variables The variables that should be available
  to the expression to evaluate.
  @return {boolean} The result of the evaluated expression, retyped to a
  boolean.