Numeric separators

Use a numeric separator to format big numbers with underscores.

Null filtering

By passing a Boolean object to the filter() method, all null values will be changed to false and eliminated.

Destructure arrays and objects

Combine the destructuring of objects and arrays into a single assignment procedure.

Rename variables in object destructuring

Rename variables in the destructuring assignment by writing a colon followed by the new name.

Arrow function returning objects

Return an object implicitly by enclosing it in brackets.

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