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JAVASCRIPTHTMLCSSPYTHONSQLJAVACPPCSHARPPHPTYPESCRIPTCRUBYGOSWIFTKOTLINRUSTRBASHSCALAOBJECTIVE-CDARTPERLLUAMATLABXMLJSONMARKDOWNASSEMBLYLATEXYAMLSOLIDITYBLOCKCHAIN

Topics

Introduction to YAML

What is YAMLYAML vs. JSON and XMLYAML Use CasesYAML File Extension

YAML Syntax Basics

YAML IndentationYAML CommentsYAML Key-Value PairsYAML StringsYAML NumbersYAML BooleansYAML Null Values

YAML Data Structures

YAML ListsYAML Nested ListsYAML DictionariesYAML Nested DictionariesYAML Complex Structures

YAML Advanced Features

YAML AnchorsYAML AliasesYAML Merge KeysYAML Block ScalarsYAML Folded ScalarsYAML Literal ScalarsYAML Multi-line Strings

YAML Data Types

YAML TimestampsYAML Binary DataYAML SetsYAML PairsYAML Omap

YAML Document Structure

YAML Multiple DocumentsYAML Document SeparatorsYAML DirectivesYAML Tags

YAML Best Practices

YAML Naming ConventionsYAML Formatting GuidelinesYAML Error HandlingYAML Version Compatibility

Working with YAML

YAML ParsingYAML GenerationYAML ValidationYAML in PythonYAML in RubyYAML in JavaScript

YAML in Configuration

YAML for App ConfigYAML in DockerYAML in KubernetesYAML in Ansible

YAML Security

YAML InjectionYAML Safe LoadingYAML Encryption

YAML Tools and Editors

YAML Online ValidatorsYAML IDE PluginsYAML Command-line Tools

YAML Version Compatibility

YAML version compatibility is crucial for ensuring that your YAML files work seamlessly across different YAML parsers and applications. As YAML has evolved, new features and syntax changes have been introduced, making it essential to understand version differences.

YAML Versions

YAML has gone through several versions since its inception. The most common versions are:

  • YAML 1.0 (2004)
  • YAML 1.1 (2005)
  • YAML 1.2 (2009)

Key Differences Between Versions

Understanding the differences between YAML versions can help you write more compatible YAML files. Here are some notable changes:

YAML 1.1 to 1.2

  • Removed support for sexagesimal numbers and octal numbers
  • Changed the handling of yes, no, on, and off as boolean values
  • Introduced new rules for YAML strings and escaping

Ensuring Compatibility

To maintain compatibility across different YAML versions, consider the following best practices:

  1. Use the YAML version directive at the start of your file: 
    %YAML 1.2
---
key: value
  2. Avoid using version-specific features when possible
  3. Use explicit typing for ambiguous values: 
    boolean_value: !!bool yes
string_value: !!str 123
  4. Test your YAML files with different parsers and versions

Common Compatibility Issues

Be aware of these potential compatibility problems:

Tools for Checking Compatibility

Several tools can help you verify YAML version compatibility:

Conclusion

Understanding YAML version compatibility is essential for creating robust and portable YAML files. By following best practices and being aware of version differences, you can ensure your YAML documents work consistently across various applications and parsers.