I want to see if any item in arr2 matches any top level key from arr1 (forms or assets).
First array:
const arr1 = {
forms: {
permissions: {
create: true,
edit: true,
delete: true,
},
},
assets: {
permissions: {
create: true,
edit: true,
delete: true,
},
},
};
Second array:
const arr2 = ["assets", "media"];
I have tried this:
if (arr2 in arr1) {
console.log("key is in contained in object");
}
But this only works when there is only one item in arr2.
For the array use Array#some with a test using Object#hasOwnProperty.
For objects, you don't need to enumerate the keys of the object (O(n)): you can perform a direct test for the presence of a key (O(1)).
const o = {
forms: {
permissions: {
create: true,
edit: true,
delete: true,
},
},
assets: {
permissions: {
create: true,
edit: true,
delete: true,
},
},
}
const arr = ["assets", "media"]
console.log(arr.some((k) => o.hasOwnProperty(k))) // trueYou can get an array of the object's top level keys and then check if any of them are included in the other array.
Like so:
const arr1 = {
forms: {
permissions: {
create: true,
edit: true,
delete: true,
},
},
assets: {
permissions: {
create: true,
edit: true,
delete: true,
},
},
};
const arr2 = ["assets", "media"];
function hasSomeTopLevelKey(object, arrayOfKeys) {
return Object.keys(object)
.some(topLevelKey => arrayOfKeys.includes(topLevelKey));
}
const x = hasSomeTopLevelKey(arr1, arr2)
console.log(x)