Value from json path

valueFromPath.js

function valueFromObjectPath(obj, path) {

  var steps = path.split(/\//);
  var val   = obj;

  while (steps.length) {
    var key = steps.shift();
    if (typeof(val[key]) !== 'undefined') {
      val = val[ key ];
    } else {
      val = null;
      break;
    }
  }

  return val;
}

var obj = {
  step1 : {
    step2 : {
      someFalseKey: false,
      someTrueKey: true
    }
  }
};


console.log('value of step1/someKey ' + valueFromObjectPath(obj, 'step1/someKey'));                       // null
console.log('value of step1/step2/someKey ' + valueFromObjectPath(obj, 'step1/step2/someKey'));           // null
console.log('value of step1/step2/someFalseKey ' + valueFromObjectPath(obj, 'step1/step2/someFalseKey')); // false
console.log('value of step1/step2/someTrueKey ' + valueFromObjectPath(obj, 'step1/step2/someTrueKey'));   // true