Learning TypeScript (2nd Edition)

Source code of the book Learning TypeScript (http://www.learningtypescript.com/) written by Remo H. Jansen and published by Packt Publishing.

Content

Note: Not all source code files are free of compilation errors. Some of the examples throw compilation errors to demostrate how the TypeScript language services can detect them.

Note: The source code contains internal modules (AKA namespace), which are used to isolate each demo from the others. As it is explained in the book contents, in a real-world TypeScript application, it is recommended to avoid the usage of internal modules.

PART I: TypeScript fundamentals

PART II: TypeScript tools and frameworks

Editions

Second edition (ISBN 9781788391474)

First edition (ISBN 9781783985548)

How can I run the examples?

Please refer to chapter 9 in the book to learn how to install Node.js, npm, TypeScript, ts-node, and Git.

Make sure that you have TypeScript v2.8.1 and ts-node v6.0.1:

ts-node -v

Once you have everything installed you need to clone the code samples repository from GitHub using the command line interface of your OS:

git clone https://github.com/remojansen/LearningTypeScript.git

We can run the examples using ts-node from the root folder (LearningTypeScript).
Run npm install to install dependencies.
Some of this files don't have outputs and nothing will be displayed in the console while other files have outputs and some of them should throw and error. When an error is expected it is usually indicated by a comment (e.g., // Error).
Some code samples also require you to change the tsconfig.json to enable or disable some compilation flags. This is usually indicated by comments, if not comments are available, it means that the default configuration should work.
The test directory under the root directory can be ignored because it is used to test the examples in this book.

Chapter 01

ts-node chapters/chapter_01/01_type_inference.ts
ts-node chapters/chapter_01/02_variables.ts
ts-node chapters/chapter_01/03_tuples.ts
ts-node chapters/chapter_01/04_scope.ts
ts-node chapters/chapter_01/05_spread_operator.ts
ts-node chapters/chapter_01/06_flow_controls.ts
ts-node chapters/chapter_01/07_functions.ts
ts-node chapters/chapter_01/08_classes.ts
ts-node chapters/chapter_01/09_interfaces.ts
ts-node chapters/chapter_01/10_modules.ts
ts-node chapters/chapter_01/11_geometry.ts

Chapter 02

ts-node chapters/chapter_02/01_type_inference.ts
ts-node chapters/chapter_02/02_type_annotations.ts
ts-node chapters/chapter_02/03_structural_type_system.ts
ts-node chapters/chapter_02/04_union_types.ts
ts-node chapters/chapter_02/05_type_aliases.ts
ts-node chapters/chapter_02/06_intersection_types.ts
ts-node chapters/chapter_02/07_nullable_types.ts
ts-node chapters/chapter_02/08_non_nullable_types.ts
ts-node chapters/chapter_02/09_typeof_operator.ts
ts-node chapters/chapter_02/10_type_guards.ts
ts-node chapters/chapter_02/11_custom_type_guards.ts
ts-node chapters/chapter_02/12_control_flow_analysis.ts
ts-node chapters/chapter_02/13_literal_types.ts
ts-node chapters/chapter_02/14_discriminated_unions.ts
ts-node chapters/chapter_02/15_never_type.ts
ts-node chapters/chapter_02/16_enumerations.ts
ts-node chapters/chapter_02/17_object_literals.ts
ts-node chapters/chapter_02/18_weak_types.ts
ts-node chapters/chapter_02/19_keyof_operator.ts
ts-node chapters/chapter_02/20_index_signature.ts
ts-node chapters/chapter_02/21_local_types.ts
ts-node chapters/chapter_02/22_type_casting.ts
ts-node chapters/chapter_02/23_generic_types.ts
ts-node chapters/chapter_02/24_generic_constraints.ts
ts-node chapters/chapter_02/25_mapped_types.ts
ts-node chapters/chapter_02/26_lookup_types.ts
ts-node chapters/chapter_02/27_mapped_type_modifiers.ts
ts-node chapters/chapter_02/28_conditional_types.ts
ts-node chapters/chapter_02/29_polymorphic_this_type.ts

Chapter 03

ts-node chapters/chapter_03/01_function_declaration.ts
ts-node chapters/chapter_03/02_function_types.ts
ts-node chapters/chapter_03/03_trailing_comas.ts
ts-node chapters/chapter_03/04_optional_parameters.ts
ts-node chapters/chapter_03/05_default_parameters.ts
ts-node chapters/chapter_03/06_rest_parameters.ts
ts-node chapters/chapter_03/07_function_overloading.ts
ts-node chapters/chapter_03/08_specialized_overloading.ts
ts-node chapters/chapter_03/09_function_scope.ts
ts-node chapters/chapter_03/10_iife.ts
ts-node chapters/chapter_03/11_tag_templates.ts
ts-node chapters/chapter_03/12_arrow_functions.ts
ts-node chapters/chapter_03/13_callbak_hell.ts
ts-node chapters/chapter_03/14_promises.ts
ts-node chapters/chapter_03/15_covariant_arguments.ts
ts-node chapters/chapter_03/16_generators.ts
ts-node chapters/chapter_03/17_async_await.ts
ts-node chapters/chapter_03/18_async_generators.ts
ts-node chapters/chapter_03/19_async_iterators.ts
ts-node chapters/chapter_03/20_delegate_generators.ts

Chapter 04

ts-node chapters/chapter_04/01_classes.ts
ts-node chapters/chapter_04/02_Inheritance.ts
ts-node chapters/chapter_04/03_access_modifiers.ts
ts-node chapters/chapter_04/04_parameter_properties.ts
ts-node chapters/chapter_04/05_class_expressions.ts
ts-node chapters/chapter_04/06_static_members.ts
ts-node chapters/chapter_04/07_optional_properties.ts
ts-node chapters/chapter_04/08_readonly_properties.ts
ts-node chapters/chapter_04/09_method_overriding.ts
ts-node chapters/chapter_04/10_generic_classes.ts
ts-node chapters/chapter_04/11_generic_constraints.ts
ts-node chapters/chapter_04/12_mixins.ts
ts-node chapters/chapter_04/13_iterables.ts
ts-node chapters/chapter_04/14_abstract_classes.ts
ts-node chapters/chapter_04/15_interfaces.ts
ts-node chapters/chapter_04/16_srp.ts
ts-node chapters/chapter_04/17_encapsulation.ts
ts-node chapters/chapter_04/18_ocp.ts
ts-node chapters/chapter_04/19_polymorphism.ts
ts-node chapters/chapter_04/20_isp.ts
ts-node chapters/chapter_04/21_lsp.ts
ts-node chapters/chapter_04/22_dip.ts

Chapter 05

ts-node chapters/chapter_05/01_namespaces.ts
ts-node chapters/chapter_05/02_nested_namespaces.ts

The example about multi-file namespaces requires both files to be passed to ts-node:

ts-node chapters/chapter_05/02_nested_namespaces.ts chapters/chapter_05/03_multifile_namespace.ts

ts-node chapters/chapter_05/04_periods.ts
ts-node chapters/chapter_05/05_e6_modules_export.ts
ts-node chapters/chapter_05/06_es6_module_import.ts
ts-node chapters/chapter_05/07_legacy_modules_export.ts
ts-node chapters/chapter_05/08_legacy_modules_import.ts
ts-node chapters/chapter_05/09_inversion_vs_injection.ts
ts-node chapters/chapter_05/10_ioc_containers.ts

Chapter 06

ts-node chapters/chapter_06/01_stack.ts
ts-node chapters/chapter_06/02_function_calls.ts
ts-node chapters/chapter_06/03_bind.ts
ts-node chapters/chapter_06/04_prototypes.ts
ts-node chapters/chapter_06/05_prototype_chain.ts
ts-node chapters/chapter_06/06_closures.ts

Chapter 07

ts-node chapters/chapter_07/01_pure_functions.ts
ts-node chapters/chapter_07/02_lambdas.ts
ts-node chapters/chapter_07/03_function_types.ts
ts-node chapters/chapter_07/04_higher_order_function.ts
ts-node chapters/chapter_07/05_composition.ts
ts-node chapters/chapter_07/06_partial_application.ts
ts-node chapters/chapter_07/07_currying.ts
ts-node chapters/chapter_07/08_pipes.ts
ts-node chapters/chapter_07/09_pointfree_style.ts
ts-node chapters/chapter_07/10_recursion.ts
ts-node chapters/chapter_07/13_immutable.ts
ts-node chapters/chapter_07/14_ramda.ts

Examples 11_functors.ts and 12_monads.ts should be executed in a web browser. This means that ts-node will not work. You can compile the code using the TypeScript playground and then execute the output JS code using in the JavaScript console of your web browser.

Chapter 08

ts-node chapters/chapter_08/01_class_decorator.ts
ts-node chapters/chapter_08/02_method_decorator.ts
ts-node chapters/chapter_08/03_property_decorator.ts
ts-node chapters/chapter_08/04_parameter_decorator.ts
ts-node chapters/chapter_08/05_decorator_options.ts
ts-node chapters/chapter_08/06_reflect_metadata.ts
ts-node chapters/chapter_08/07_decorator_factory.ts

Chapter 09

Please refer to the instructions at /chapters/chapter_09/readme.md.

Chapter 10

Please refer to the instructions at /chapters/chapter_10/readme.md.

Chapter 11

Please refer to the instructions at /chapters/chapter_11/readme.md.

Chapter 12

Please refer to the instructions at /chapters/chapter_12/readme.md.

Chapter 13

ts-node chapters/chapter_13/01_exception.ts
ts-node chapters/chapter_13/02_try_catch.ts

Chapter 14

ts-node chapters/chapter_14/01_assertions/application.ts
ts-node chapters/chapter_14/01_assertions/assertions.ts

Please refer to the instructions at /chapters/chapter_14/02_testing/readme.md.

Chapter 15

cd chapters/chapter_15
npm install
ts-node 01_ast_raw.ts
ts-node 02_ast_navigation.ts
ts-node 03_ast_diagnostics.ts
ts-node 04_ast_classes.ts
ts-node 05_ast_modules.ts
ts-node 06_language_services.ts
ts-node 07_uml_demo.ts

another-guy/LearningTypeScript