Question 1

How to validate international phone numbers correctly?

Accepted Answer

Refer to the Phone Numbers section for falsehoods, but you'll need to implement solutions using libraries like Google's libphonenumber, which handles parsing and formatting for various countries. Avoid regex-based validation due to complexities like extensions and country codes.

Question 2

What are common mistakes with date handling in software?

Accepted Answer

The Dates and Time section lists falsehoods such as ignoring leap seconds or assuming time zones are fixed. Use standards like ISO-8601 and libraries that support IANA Time Zone Database to handle edge cases like DST transitions.

Question 3

Awesome Falsehoods vs regular programming best practices guides?

Accepted Answer

Awesome Falsehoods focuses specifically on debunking misconceptions across niche domains, while general guides cover broader topics like code style or architecture. It's a specialized resource for anticipating edge cases rather than general advice.

Question 4

Why do programmers get names wrong in forms?

Accepted Answer

The Human Identity section explains falsehoods like assuming names have first/last parts or specific characters. Real-world examples, such as names with multiple words or cultural variations, show why flexible input fields are necessary.

Question 5

How to use Awesome Falsehoods when designing a new system?

Accepted Answer

Browse relevant categories early in the design phase, such as Postal Addresses for international formats or Emails for validation rules. Use the lists to identify assumptions and plan resilient data models, but supplement with implementation libraries.

Question 6

Best resources for handling time zones in code?

Accepted Answer

Start with the Dates and Time section for articles on time zone falsehoods, then use tools like the IANA Time Zone Database. Be cautious of storing only UTC, as some scenarios require local time context for historical dates.

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