bingzer

var stringify = function(obj, prop) {
  var placeholder = '____PLACEHOLDER____';
  var fns = [];
  var json = JSON.stringify(obj, function(key, value) {
    if (typeof value === 'function') {
      fns.push(value);
      return placeholder;
    }
    return value;
  }, 2);

bingzer

function evaluate(code, args = {}) {       
    // Call is used to define where "this" within the evaluated code should reference.
    // eval does not accept the likes of eval.call(...) or eval.apply(...) and cannot
    // be an arrow function
    return function evaluateEval() {
        // Create an args definition list e.g. "arg1 = this.arg1, arg2 = this.arg2"
        const argsStr = Object.keys(args)
            .map(key => `${key} = this.${key}`)
            .join(',');
        const argsDef = argsStr ? `let ${argsStr};` : '';