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Starter#Objects#Polyfill
Object.assign Polyfill
Implement Object.assign from scratch: copy own enumerable properties (including Symbols) from sources onto the target.
By modernDev2026-06-05Medium
Object.assign copies own enumerable string and symbol keys from one or more sources onto a target object. The trap: most implementations forget symbols. Using Reflect.ownKeys instead of Object.keys captures both. Remember to skip null/undefined sources without throwing, and to throw if the target itself is null/undefined.
Goal: Implement Object.myAssign with correct symbol support and null-source handling.
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