Object iteration

Note

This proposal has been withdrawn and will be removed from the next major Core-JS version.

Modules

• esnext.object.iterate-keys
• esnext.object.iterate-values
• esnext.object.iterate-entries.

Types

interface Object {
  iterateKeys(object: { [k: PropertyKey]: any }): Iterator<string>;
  iterateValues<T>(object: { [k: PropertyKey]: T }): Iterator<T>;
  iterateEntries<T>(object: { [k: PropertyKey]: T }): Iterator<[string, T]>;
}

Entry points

core-js/proposals/object-iteration
core-js(-pure)/full/object/iterate-keys
core-js(-pure)/full/object/iterate-values
core-js(-pure)/full/object/iterate-entries

Example

Example:

const obj = { foo: "bar", baz: "blah" };

for (const [key, value] of Object.iterateEntries(obj)) {
  console.log(`${key} -> ${value}`);
}

for (const key of Object.iterateKeys(obj)) {
  console.log(key);
}

for (const value of Object.iterateValues(obj)) {
  console.log(value);
}