A small but practical challenge. Write a function that replaces variables in a string using values from an object or dictionary. We’ve got a compact JavaScript version that does it in 61 characters using regex. Can you come up with a shorter solution? Use any language but make sure your solution can handle missing keys and repeated variables. Share your approach below!

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Speakers:  Christine Rafla

Google for Developers

A code golf challenge to write the shortest possible string template variable replacer function. The reference solution is a JavaScript implementation in 61 characters. Participants are encouraged to try in any language and explore handling edge cases like missing keys, nested objects, and repeated variables.

Solve this JavaScript code golf challenge: write a function that replaces variables in a string. Go!