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Simple and effective math flash cards

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Based on our record, JavaScript Operator Lookup seems to be more popular. It has been mentioned 1 time since March 2021.
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| Website | 4bitshift.vercel.app | joshwcomeau.com |
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Tracking Flash Cards: Math since Aug 2021.
If you replace your || with ?? You should get the behaviour you are after. This is a good reference for what the operators do in js: https://joshwcomeau.com/operator-lookup. Source: about 5 years ago
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