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safeFindStudent

As explained in Functional Programming in JavaScript

A book-local function name for a safe student lookup that returns a wrapped result.

safeFindStudent is a safe lookup for a student record. It returns the result wrapped in Maybe, so missing data becomes Nothing instead of a crash. section 5.3

It fits a pattern for uncertain operations like database queries and collection lookups. The wrapped return value makes the function honest about possible absence and supports further mapping. section 5.3

Safe student address lookup

safeFindStudent('444-44-4444').map(R.prop('address')) returns Just(Address(...)) when the student exists, or Nothing when it does not.

How Functional Programming in JavaScript covers it

How deep it goes
Defines the lookup and shows its Maybe-wrapped return, then stops at simple mapping and default handling.
Examples
Uses a student-store lookup and an address extraction example with Just and Nothing outcomes.
What it assumes
Assumes basic JavaScript and a simple find operation, then teaches Maybe wrapping from zero.
What you can do after
Builds safer student lookups that can be mapped, defaulted, or composed without null checks.
How it connects
Connects to Maybe, safeFindObject, map, getOrElse, and safe property access.
Cover of Functional Programming in JavaScript
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This explainer was generated by Manning's knowledge graph from the text of Functional Programming in JavaScript. The section links point to the parts of the book it draws on.