Wsrtjtyk

I'm having trouble looping through an object and changing all the values to something else, let's say I want to change all the values to the string "redacted". I need to be able to do this in pure JavaScript.

For example I'd have an object like this...

spy = {

id: 007,

name: "James Bond",

age: 31

};

and the object would look like this after...

spy = {

id: "redacted",

name: "redacted",

age: "redacted"

};

Here is what I have to start with

var superSecret = function(spy){

  // Code Here

}

This shouldn't create a new spy object but update it.

try

var superSecret = function(spy){

  Object.keys(spy).forEach(function(key){ spy[key] = "redacted" });

  return spy;

}

var superSecret = function(spy){

    for(var key in spy){

          if(spy.hasOwnProperty(key)){

               //code here

               spy[key] = "redacted"; 

            }

     }

   return spy;    

}

You can also go functional.

Using Object.keys is better as you will only go through the object properties and not it's prototype chain.

Object.keys(spy).reduce((acc, key) => {acc[key] = 'redacted'; return acc; }, {})

I wrote a little helper function that walks through an object and applies a callback to each entry:

iterateEntries(node, fn) {

    const newNode = {};

    Object.entries(node).forEach(([key, val]) => (newNode[key] = fn(val)));

    return newNode;

}

Usage:

iterateEntries(yourObject, (entry) => {

  return entry; // do something with entry here

});

Use a proxy:

function superSecret(spy) {

  return new Proxy(spy, { get() { return "redacted"; } });

}



> superSecret(spy).id

< "redacted"