String conversion
String conversion is an operation that transforms a value or representation into its textual string form according to language-defined rules.
The Well-Grounded Rubyist, Fourth Edition
String conversion is the derivation of a string or another object representing a string value in a different form.
- How it is used
- Provides object representations for output, interpolation, inspection, and regular-expression troubleshooting.
- How deep it goes
- Explains automatic calls, custom definitions, related methods, array exceptions, and regexp notation without exhaustive API coverage.
- Examples
- Uses irb expressions, a customized Object instance, array output, file output, and regular-expression representations.
- What you can do after
- Apply it via Ruby's to_s, puts, interpolation, inspect, display, and custom representation methods.
Read how The Well-Grounded Rubyist, Fourth Edition explains string conversion →
Python How-To
A string representation is textual output that describes the value or identity of an object.
- How it is used
- Improves object inspection, printed output, formatted display, and interactive console readability for class instances.
- How deep it goes
- Distinguishes __str__ from __repr__, specifies return requirements, and demonstrates both overrides with a Task class.
- Examples
- Uses a Task object with title, description, and urgency fields to demonstrate print, f-string interpolation, str(), repr(), and console display.
- What you can do after
- Build it from scratch by overriding __str__ and __repr__ for readable display and informative instance representations.
Related concepts
- arrayused by · An array is an indexed, ordered collection of elements arranged in one or more dimensions, with elements accessed by position.
- __str__produced by · __str__ is a Python special method that returns an object's informal, human-readable string representation.
- __repr__produced by · __repr__ is a Python special method that returns an object’s developer-oriented string representation, ideally unambiguous and suitable for recreating an equivalent object.
- regular expressionproduced by · A formal pattern notation that describes sets of strings and enables text to be matched, searched, extracted, or transformed.
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