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Course Content


A block is similar to a method, except it is not part of an object. Closures are the name given to blocks in different programming languages. There are a few key elements to remember regarding Ruby Blocks: Block is a function that takes arguments and returns a value. Block does not have a moniker of their own.

The explanation is that when you use block. call, you can send the block to another function if you like, however yield does not allow you to do so. When we add &block to a method's signature, we may do more than just call the block with block.

Anonymous functions that can be provided into methods are known as Ruby blocks. A do-end statement or curly braces are used to enclose blocks. do-end is typically used for multi-line blocks, whereas is typically used for single-line blocks. Arguments for blocks should be defined between two pipe | characters.

However, Ruby has featured closure-like structures known as blocks since its inception, and they're an important part of the language. They can decrease duplication and possibly make coding less error-prone when used correctly. Understanding blocks might provide you with some fantastic ideas to bring back to your native language.

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