Unions

7 lessons

• 01UnionsLearn how to allow a value to be one of several types using union types.
• 02Optional ParametersLearn how to define function parameters that are not strictly required.
• 03Default ParametersLearn how to provide fallback values for optional function arguments.
• 04Literal TypesLearn how to constrain variables to specific exact values.
• 05Value UnionsCombine literal types and unions to create powerful custom types.
• 06Template Literal TypesLearn how to use string templates to generate complex literal types.
• 07Giant UnionsUnderstand the performance implications of overly complex union types.