I am trying to get a const object indirectly by its name, which is contained in a string. I have no idea if this is possible but if it is, it would make my life a hell of a lot easier. As an example in pseudocode: var obj = findObject("myConstObject"); I know this is a strange thing to need, but I am dealing with quite a large amount of data, and being able to grab objects in this way would work a lot better with my existing code. Thanks in advance!

CodePudding user response：

You can use Object.getOwnPropertyNames() to get all property names of an object. Here is an example that demonstrates how to search a myObj1 that is in the global window scope, and a myObj2 that is in the myStuff object scope:

// object attached to window object:
myObj1 = { a: 1 };

function getKeyNames(aThis) {
  return Object.getOwnPropertyNames(aThis || globalThis).sort();
}

console.log('search myObj1 in global scope:', getKeyNames().filter(name => name === 'myObj1'));

// object attached to my on stuff:
const myStuff = {
    myObj2: { b: 2 },
    deeperLevel: {
      myObj3: { b: 3 },
    }
}

console.log('search myObj2 in myStuff scope:', getKeyNames(myStuff).filter(name => name === 'myObj2'));

Output:

search myObj1 in global scope: [
  "myObj1"
]
search myObj2 in myStuff scope: [
  "myObj2"
]

Notes:

• if needed, expand this code to search recursively the object hierarchy, so that myStuff.deeperLevel.myObj3 can be found searching myStuff
• if needed, expand this code to search a list of objects of interest