07. Ruby String Slides - Ruby Core Teaching
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The document introduces Ruby strings as essential data types composed of unicode characters and discusses their creation, access, and manipulation. It explains how to create string objects using literals and formatting characters, as well as variable interpolation. Various methods for handling strings in Ruby are also mentioned.
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07. Ruby String Slides - Ruby Core Teaching
- 2. Contents INTRODUCTION USING QUOTES CREATING STRING OBJECT ESCAPE SEQUENCE CONVERT TO STRING INTERATING WITH STRING ACCESSING STRING AS ARRAY MULTILINE STRING VARIABLE INTERPOLATION
- 3. Introduction
- 4. Introduction String are one of the most important data types in computer languages. A string is a sequence of Unicode characters. It is a data type that stores a sequence of data values in which elements usually stand for characters according to a character encoding. String objects may be created using String::new or as literals. When a string appears literally in source code, it is known as a string literal. In Ruby string literals are enclosed by single or double quotes.
- 7. Using quotes
- 8. Using quotes
- 10. Escape sequence
- 13. Accessing string as array
- 15. Multiline string
- 16. Multiline string
- 17. Multiline string
- 19. Variable interpolation The %s and %d are formatting characters that expect a string and a number, respectively. The values are provided in square brackets after the % character. Variable interpolation is replacing variables with their values inside string literals. To substitute a variable with a value, the variable name is put between #{var_name} characters inside the string literal
- 20. Other methods
- 21. Other methods