Method call
A method call is an expression that invokes a method associated with an object, value, or type, optionally supplying arguments.
The Well-Grounded Rubyist, Fourth Edition
A method call is a Ruby expression that invokes a method on an object, optionally supplying arguments and a block.
- How it is used
- Uses method calls to ask objects for information or actions and to place returned values in expressions.
- How deep it goes
- Explains receivers, arguments, returns, blocks, and bareword resolution, while deferring fuller treatment of block parameters.
- Examples
- Contrasts string conversion, ticket queries, argument-count errors, and calls with or without blocks.
- What you can do after
- Diagnose/debug with it by distinguishing arguments from blocks and bareword calls from local variables.
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Rust in Action: Systems programming concepts and techniques
A method call is an expression that invokes a method associated with a value or type.
- How it is used
- Uses method calls to process text records and perform numeric operations in practical Rust programs.
- How deep it goes
- Explains dot syntax through working examples and operator precedence, but does not develop method implementation or dispatch internals.
- Examples
- Demonstrates CSV parsing with `trim`, `split`, `map`, and `collect`, plus rounding, exponentiation, and floating-point bit decoding.
- What you can do after
- Apply method syntax to transform text, call numeric operations, and recognize precedence problems in Rust expressions.
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Related concepts
- return valueproduces · A return value is the result produced by a function, method, or operation and supplied to the code that invoked it.
- function argumentuses · A function argument is a value or expression supplied when a function or method is invoked, providing input to the called operation.
- scopeproduces · Scope is the region of a program in which names are visible and can be resolved according to the language’s lookup rules.
- argument listhas part · An argument list is an ordered collection of expressions or values supplied to a callable and interpreted according to its parameters.
- syntactic sugarcontrasts with · Syntactic sugar is language syntax that provides a more convenient or readable form for expressing behavior already representable by other constructs without changing its meaning.
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