06. Ruby Array & Hash - Ruby Core Teaching
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The document provides a comprehensive overview of Ruby arrays and hashes, detailing their composition, creation, and various manipulation methods. It highlights key operations for arrays such as adding, removing elements, and iterating, as well as similar functionalities for hashes including key-value assignment and accessing elements. The text emphasizes the differences between arrays and hashes, particularly in terms of indexing and structure.
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This talk will explore how we can use AI tools to enhance our learning experiences, by looking at some (recent) research that has been done on the matter.
But as we embrace these new technologies, we must also ask ourselves:
Are we becoming less capable of thinking for ourselves?
Do these tools make us smarter, or do they risk dulling our critical thinking skills?
This talk will encourage us to think critically about the role of AI in our education. Together, we will discover how to use AI to support our learning journey while still developing our ability to think critically.
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How smart campaign queueing works, how flow steps are prioritized, and configurations that slow down smart campaign processing.
Best practices for smart list and smart campaign configurations that yield greater reliability and processing efficiencies.
Generally recommended timelines for reviewing instance performance: walk away from this session with a guideline of what to review in Marketo and how often to review it.
This session will be helpful for any Marketo administrator looking for opportunities to improve and streamline their instance performance. Be sure to watch to learn best practices and connect with your local Marketo peers!
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For each pattern, we’ll discuss benefits, challenges, and how we mitigate drawbacks to create practical solutions
This session offers actionable insights for developers and architects tackling distributed systems, helping refine microservices and adopting Kafka-driven async excellence.
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06. Ruby Array & Hash - Ruby Core Teaching
- 1. RUBY ARRAY & HASH Hoang Quan(BlazingRockStorm)
- 2. Array
- 3. Contents CONCEPT ACCESSING ARRAY ARRAY MANIPULATION CREATING ARRAY GET INFORMATION ABOUT AN ARRAY INTERATING OVER ARRAY OTHER METHODS
- 4. Concept
- 5. Concept Arrays are ordered collections of objects, integer-indexed Array class inherits Object class and includes Enumerable module Array indexing starts at 0 A negative index is assumed to be relative to the end of the array
- 10. Get information about an array
- 11. Get information about an array
- 13. Array manipulation: Adding Adding items to array by using either push or <<
- 14. Array manipulation: Adding unshift will add new item to the beginning of an array With insert you can add a new element to an array at any position
- 15. Array manipulation: flatten Returns a new array that is a one-dimensional flattening of self (recursively)
- 16. Array manipulation: flatten Returns a new array that is a one-dimensional flattening of self (recursively)
- 17. Array manipulation: Removing The method pop removes the last element in an array and returns it
- 18. Array manipulation: Removing To retrieve and at the same time remove the first item, use shift To delete an element at a particular index
- 20. Interating over array Array has each method, which includes from Enumerable module Sometimes useful iterator is reverse_each which will iterate over the elements in the array in reverse order
- 21. Interating over array The map method can be used to create a new array based on the original array
- 22. Other methods
- 24. Hash
- 25. Contents CONCEPT ACCESSING HASH ELEMENT ASIGNMENT CREATING HASH CONVERTING TO HASH EQUALITY HASHES INTERATING OVER HASH OTHER METHODS
- 26. Concept
- 27. Concept A Hash is a collection of key-value pairs It is similar to an Array, except that indexing is done via arbitrary keys of any object type, not an integer index Hashes enumerate their values in the order that the corresponding keys were inserted Hashes have a default value that is returned when accessing keys that do not exist in the hash. By default, that value is nil
- 28. Creating hash
- 29. Creating hash
- 30. Accessing array
- 31. Accessing hash
- 33. Converting to hash Using try_convert(obj) return hash or nil
- 34. Equality hashes
- 35. Equality hashes Operator: ==, >, <, >=, <= ⇒ return true/false
- 39. Interating over hash The map method can be used to create a new array based on the original array
- 40. Other methods
- 41. Other methods compact (!) any? empty? include? length merge (!) has_key? reject (!) size shift has_value? select (!)