fil-obj/dist/main.mjs

Filter an object by keys or a function.

// source/main.ts
function filter(object, fn) {
  for (const key in object)
    if (!fn(key, object[key], object)) delete object[key];
}
function toFiltered(object, fn) {
  const result = {};
  for (const key in object)
    if (fn(key, object[key], object))
      result[key] = object[key];
  return result;
}
function keepKeys(object, keys) {
  const list = new Set(keys);
  for (const key in object)
    if (!list.has(key)) delete object[key];
}
function includeKeys(object, keys) {
  const result = {};
  for (const key of keys)
    if (key in object)
      result[key] = object[key];
  return result;
}
function dropKeys(object, keys) {
  const list = new Set(keys);
  for (const key in object)
    if (list.has(key)) delete object[key];
}
function excludeKeys(object, keys) {
  const result = {};
  const list = new Set(keys);
  for (const key in object)
    if (!list.has(key))
      result[key] = object[key];
  return result;
}
export {
  dropKeys,
  excludeKeys,
  filter,
  includeKeys,
  keepKeys,
  toFiltered
};