plastikaweb
1/5/2017 - 8:38 AM

JS Bin reduce - safe nested object inspection // source https://jsbin.com/qafibow

JS Bin

reduce - safe nested object inspection

// source https://jsbin.com/qafibow

index.html
content_copyfile_download
<!DOCTYPE html>
<html>
<head>
<meta name="description" content="reduce - safe nested object inspection">
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>JS Bin</title>
</head>
<body>

<script id="jsbin-javascript">
var luke = {
  name: 'luke',
  jedi: true,
  parents: {
    father: {
      jedi: true
    },
    mother: {
      jedi: false
    }
  }
};

var han = {
  name: 'han',
  jedi: false,
  parents: {
    father: {
      jedi: false
    },
    mother: {
      jedi: false
    }
  }
};

var anakin = {
  name: 'anakin',
  jedi: true,
  parents: {
    mother: {
      jedi: false
    }
  }
};

var characters = [luke, han, anakin];

function fatherWasJedi(character) {
  var path = 'parents.father.jedi';
  return path.split('.').reduce(function(obj, field) {
    if(obj) {
      return obj[field];
    } else {
      return false;
    }
  }, character);
}

characters.forEach(function(character) {
  console.log(character.name + ' father was a jedi: ' + fatherWasJedi(character));
});
</script>



<script id="jsbin-source-javascript" type="text/javascript">var luke = {
  name: 'luke',
  jedi: true,
  parents: {
    father: {
      jedi: true
    },
    mother: {
      jedi: false
    }
  }
};

var han = {
  name: 'han',
  jedi: false,
  parents: {
    father: {
      jedi: false
    },
    mother: {
      jedi: false
    }
  }
};

var anakin = {
  name: 'anakin',
  jedi: true,
  parents: {
    mother: {
      jedi: false
    }
  }
};

var characters = [luke, han, anakin];

function fatherWasJedi(character) {
  var path = 'parents.father.jedi';
  return path.split('.').reduce(function(obj, field) {
    if(obj) {
      return obj[field];
    } else {
      return false;
    }
  }, character);
}

characters.forEach(function(character) {
  console.log(character.name + ' father was a jedi: ' + fatherWasJedi(character));
});</script></body>
</html>
jsbin.qafibow.js
content_copyfile_download
var luke = {
  name: 'luke',
  jedi: true,
  parents: {
    father: {
      jedi: true
    },
    mother: {
      jedi: false
    }
  }
};

var han = {
  name: 'han',
  jedi: false,
  parents: {
    father: {
      jedi: false
    },
    mother: {
      jedi: false
    }
  }
};

var anakin = {
  name: 'anakin',
  jedi: true,
  parents: {
    mother: {
      jedi: false
    }
  }
};

var characters = [luke, han, anakin];

function fatherWasJedi(character) {
  var path = 'parents.father.jedi';
  return path.split('.').reduce(function(obj, field) {
    if(obj) {
      return obj[field];
    } else {
      return false;
    }
  }, character);
}

characters.forEach(function(character) {
  console.log(character.name + ' father was a jedi: ' + fatherWasJedi(character));
});