feat: adds lesson_06 homework details and lesson_07 prework (#234)

* feat: adds lesson_06 homework

Signed-off-by: Anthony D. Mays <anthony@morganlatimer.com>

* docs: adds lesson_07 prework

Signed-off-by: Anthony D. Mays <anthony@morganlatimer.com>

* chore: moves interface to its own file

Signed-off-by: Anthony D. Mays <anthony@morganlatimer.com>

* chore: adds missing interface

* feat: adds cli app

Signed-off-by: Anthony D. Mays <anthony@morganlatimer.com>

* chore: renaming files

Signed-off-by: Anthony D. Mays <anthony@morganlatimer.com>

* chore: adding lesson details

Signed-off-by: Anthony D. Mays <anthony@morganlatimer.com>

* chore: removes nodemon

Signed-off-by: Anthony D. Mays <anthony@morganlatimer.com>

---------

Signed-off-by: Anthony D. Mays <anthony@morganlatimer.com>

Author: anthonydmays

lesson_06/README.md

@@ -8,4 +8,25 @@ Please review the following resources before lecture:
 
 ## Homework
 
-TODO(anthonydmays): Add details
+- [ ] Complete the [Expression Calculator](#expression-calculator) exercise.
+- [ ] Read article entitled [3 Questions That Will Make You A Phenomenal Rubber Duck][article-link]
+- [ ] Do pre-work for [lesson 07](/lesson_07/).
+
+### Expression Calculator
+
+For this assignment, you will need to implement the functions and logic required to calculate a mathematical expression. After implementing the `add`, `divide`, and `multiply` functions, you will combine these functions to compute the final result.
+
+1. Update the code in the [expression_calculator.ts][calculator-file] file.
+2. To check your work, you can run the application using the first command below and run the tests using the second one.
+```bash
+npm run compile
+npm start
+```
+3. As usual, make sure that you format your code and run the check command before creating your pull request.
+```bash
+npm run check
+```
+4. You must only submit changes to the `expression_calculator.ts` file to receive full credit.
+
+[article-link]: https://blog.danslimmon.com/2024/01/18/3-questions-that-will-make-you-a-phenomenal-rubber-duck/
+[calculator-file]: ./expression/src/expression_calculator.ts

lesson_06/expression/.editorconfig

@@ -0,0 +1,8 @@
+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+end_of_line = lf
+charset = utf-8
+insert_final_newline = true

lesson_06/expression/.eslintignore

@@ -0,0 +1 @@
+build/

lesson_06/expression/.prettierignore

@@ -0,0 +1,3 @@
+# Ignore artifacts:
+build
+coverage

lesson_06/expression/.prettierrc

@@ -0,0 +1 @@
+{}

lesson_06/expression/eslint.config.js

@@ -0,0 +1,15 @@
+// @ts-check
+
+import eslint from "@eslint/js";
+import tseslint from "typescript-eslint";
+import eslintConfigPrettier from "eslint-config-prettier";
+
+export default tseslint.config(
+  eslint.configs.recommended,
+  ...tseslint.configs.strict,
+  ...tseslint.configs.stylistic,
+  eslintConfigPrettier,
+  {
+    ignores: ["build"],
+  },
+);

lesson_06/expression/jest.config.js

@@ -0,0 +1,11 @@
+/** @type {import('ts-jest').JestConfigWithTsJest} **/
+export default {
+  testEnvironment: "node",
+  transform: {
+    "^.+.tsx?$": ["ts-jest", { useESM: true }],
+  },
+  moduleNameMapper: {
+    "^(\\.\\.?\\/.+)\\.js$": "$1",
+  },
+  extensionsToTreatAsEsm: [".ts"],
+};