I have an object:
const obj = {
1: { "id": 1, "taskId": 1, },
2: { "id": 2, "taskId": 2, },
3: { "id": 3, "taskId": 2, },
4: { "id": 4, "taskId": 3, },
};
I need to remove all objects with keys 'taskId': 2. Have no idea how to write fn to use with omitBy. Can anyone help?
console.log(_.omitBy(obj, ???));
is it possible to do with "omitBy" function from lodash? or I need to find another way?
In the callback, just take the taskId property from the object, and check if it's 2:
const obj = {
1: { "id": 1, "taskId": 1, },
2: { "id": 2, "taskId": 2, },
3: { "id": 3, "taskId": 2, },
4: { "id": 4, "taskId": 3, },
};
console.log(
_.omitBy(
obj,
({ taskId }) => taskId === 2
)
);<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.15/lodash.js"></script>It's trivial to accomplish without relying on a library, though, no need for Lodash:
const obj = {
1: { "id": 1, "taskId": 1, },
2: { "id": 2, "taskId": 2, },
3: { "id": 3, "taskId": 2, },
4: { "id": 4, "taskId": 3, },
};
console.log(
Object.fromEntries(
Object.entries(obj)
.filter(([, { taskId }]) => taskId !== 2)
)
);
You can use _.omitBy() and pass an object with the properties and values you want to remove:
const obj = {
1: { "id": 1, "taskId": 1, },
2: { "id": 2, "taskId": 2, },
3: { "id": 3, "taskId": 2, },
4: { "id": 4, "taskId": 3, },
};
const result = _.omitBy(obj, { taskId: 2 });
console.log(result);<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.15/lodash.js"></script>
