From 60b236bb662ae8c308c65671bd4217bcd9782411 Mon Sep 17 00:00:00 2001
From: Matt Pocock <mattpocockvoice@gmail.com>
Date: Mon, 18 Sep 2023 12:50:00 +0100
Subject: [PATCH] 2023-09-18T11:50:00.812Z

---
 .../src/index.js                                    |  4 ++--
 .../src/index.js                                    |  6 +++---
 .../207-mts-files.problem/src/index.ts              |  4 ++--
 .../207-mts-files.solution/src/index.ts             |  4 ++--
 .../209-treat-ts-files-as-esm.problem/package.json  | 12 ++++++++++++
 .../src/esm-module.ts                               |  5 +++++
 .../209-treat-ts-files-as-esm.problem/src/index.ts  |  7 +++++++
 .../209-treat-ts-files-as-esm.problem/tsconfig.json | 13 +++++++++++++
 .../209-treat-ts-files-as-esm.solution/package.json | 13 +++++++++++++
 .../src/esm-module.ts                               |  5 +++++
 .../209-treat-ts-files-as-esm.solution/src/index.ts |  7 +++++++
 .../tsconfig.json                                   | 13 +++++++++++++
 ....ts => 210-intro-to-the-utils-folder.problem.ts} |  0
 ...ts => 210-intro-to-the-utils-folder.solution.ts} |  0
 ...-generic-functions-without-inference.problem.ts} |  0
 ...generic-functions-without-inference.solution.ts} |  0
 ...ameter-defaults-in-generic-functions.problem.ts} |  0
 ...meter-defaults-in-generic-functions.solution.ts} |  0
 ...r-constraints-with-generic-functions.problem.ts} |  0
 ...-constraints-with-generic-functions.solution.ts} |  0
 ...214-generic-functions-with-inference.problem.ts} |  0
 ...14-generic-functions-with-inference.solution.ts} |  0
 ... 215-as-any-inside-generic-functions.problem.ts} |  0
 ...215-as-any-inside-generic-functions.solution.ts} |  0
 ...em.ts => 216-multiple-type-arguments.problem.ts} |  0
 ...n.ts => 216-multiple-type-arguments.solution.ts} |  0
 ...m.ts => 217-create-group-by-function.problem.ts} |  0
 ....ts => 217-create-group-by-function.solution.ts} |  0
 ...es.problem.ts => 218-type-predicates.problem.ts} |  0
 ....solution.ts => 218-type-predicates.solution.ts} |  0
 ...roblem.ts => 219-assertion-functions.problem.ts} |  0
 ...ution.ts => 219-assertion-functions.solution.ts} |  0
 ...problem.ts => 220-function-overloads.problem.ts} |  0
 ...lution.ts => 220-function-overloads.solution.ts} |  0
 ...problem.ts => 221-hungarian-notation.problem.ts} |  0
 ...lution.ts => 221-hungarian-notation.solution.ts} |  0
 ...em.ts => 222-where-to-put-your-types.problem.ts} |  0
 ...n.ts => 222-where-to-put-your-types.solution.ts} |  0
 ...roblem.ts => 223-colocation-of-types.problem.ts} |  0
 ...ution.ts => 223-colocation-of-types.solution.ts} |  0
 ...lainer.ts => 224-setting-up-eslint.explainer.ts} |  0
 ...m.ts => 225-explicit-any-rule-or-not.problem.ts} |  0
 ....ts => 225-explicit-any-rule-or-not.solution.ts} |  0
 ... => 226-explicit-return-types-or-not.problem.ts} |  0
 ...=> 226-explicit-return-types-or-not.solution.ts} |  0
 ...-any-vs-ts-ignore-vs-ts-expect-error.problem.ts} |  0
 ...any-vs-ts-ignore-vs-ts-expect-error.solution.ts} |  0
 ...re-type-and-value-with-the-same-name.problem.ts} |  0
 ...e-type-and-value-with-the-same-name.solution.ts} |  0
 ...roblem.ts => 229-types-vs-interfaces.problem.ts} |  0
 ...ution.ts => 229-types-vs-interfaces.solution.ts} |  0
 ...ction-object-string-boolean-as-types.problem.ts} |  0
 ...tion-object-string-boolean-as-types.solution.ts} |  0
 ...31-dont-use-globally-available-types.problem.ts} |  0
 ...1-dont-use-globally-available-types.solution.ts} |  0
 ...2-how-strict-should-you-configure-ts.problem.ts} |  0
 ...-how-strict-should-you-configure-ts.solution.ts} |  0
 ...> 233-dont-unnecessarily-widen-types.problem.ts} |  0
 ... 233-dont-unnecessarily-widen-types.solution.ts} |  0
 ...t-file-by-file-vs-ramp-up-strictness.problem.ts} |  0
 ...-file-by-file-vs-ramp-up-strictness.solution.ts} |  0
 ...problem.ts => 235-dependencies-first.problem.ts} |  0
 ...lution.ts => 235-dependencies-first.solution.ts} |  0
 ...ts => 236-typing-third-party-modules.problem.ts} |  0
 ...s => 236-typing-third-party-modules.solution.ts} |  0
 .../{236-madge.problem.ts => 237-madge.problem.ts}  |  0
 ...{236-madge.solution.ts => 237-madge.solution.ts} |  0
 ...rstanding-the-structure-of-ts-errors.problem.ts} |  0
 ...standing-the-structure-of-ts-errors.solution.ts} |  0
 ...lem.ts => 239-experiments-with-jsdoc.problem.ts} |  0
 ...on.ts => 239-experiments-with-jsdoc.solution.ts} |  0
 ...jsdoc-cannot-pass-types-to-functions.problem.ts} |  0
 ...sdoc-cannot-pass-types-to-functions.solution.ts} |  0
 73 files changed, 84 insertions(+), 9 deletions(-)
 create mode 100644 src/082-cjs-vs-esm/209-treat-ts-files-as-esm.problem/package.json
 create mode 100644 src/082-cjs-vs-esm/209-treat-ts-files-as-esm.problem/src/esm-module.ts
 create mode 100644 src/082-cjs-vs-esm/209-treat-ts-files-as-esm.problem/src/index.ts
 create mode 100644 src/082-cjs-vs-esm/209-treat-ts-files-as-esm.problem/tsconfig.json
 create mode 100644 src/082-cjs-vs-esm/209-treat-ts-files-as-esm.solution/package.json
 create mode 100644 src/082-cjs-vs-esm/209-treat-ts-files-as-esm.solution/src/esm-module.ts
 create mode 100644 src/082-cjs-vs-esm/209-treat-ts-files-as-esm.solution/src/index.ts
 create mode 100644 src/082-cjs-vs-esm/209-treat-ts-files-as-esm.solution/tsconfig.json
 rename src/085-the-utils-folder/{209-intro-to-the-utils-folder.problem.ts => 210-intro-to-the-utils-folder.problem.ts} (100%)
 rename src/085-the-utils-folder/{209-intro-to-the-utils-folder.solution.ts => 210-intro-to-the-utils-folder.solution.ts} (100%)
 rename src/085-the-utils-folder/{210-generic-functions-without-inference.problem.ts => 211-generic-functions-without-inference.problem.ts} (100%)
 rename src/085-the-utils-folder/{210-generic-functions-without-inference.solution.ts => 211-generic-functions-without-inference.solution.ts} (100%)
 rename src/085-the-utils-folder/{211-type-parameter-defaults-in-generic-functions.problem.ts => 212-type-parameter-defaults-in-generic-functions.problem.ts} (100%)
 rename src/085-the-utils-folder/{211-type-parameter-defaults-in-generic-functions.solution.ts => 212-type-parameter-defaults-in-generic-functions.solution.ts} (100%)
 rename src/085-the-utils-folder/{212-type-parameter-constraints-with-generic-functions.problem.ts => 213-type-parameter-constraints-with-generic-functions.problem.ts} (100%)
 rename src/085-the-utils-folder/{212-type-parameter-constraints-with-generic-functions.solution.ts => 213-type-parameter-constraints-with-generic-functions.solution.ts} (100%)
 rename src/085-the-utils-folder/{213-generic-functions-with-inference.problem.ts => 214-generic-functions-with-inference.problem.ts} (100%)
 rename src/085-the-utils-folder/{213-generic-functions-with-inference.solution.ts => 214-generic-functions-with-inference.solution.ts} (100%)
 rename src/085-the-utils-folder/{214-as-any-inside-generic-functions.problem.ts => 215-as-any-inside-generic-functions.problem.ts} (100%)
 rename src/085-the-utils-folder/{214-as-any-inside-generic-functions.solution.ts => 215-as-any-inside-generic-functions.solution.ts} (100%)
 rename src/085-the-utils-folder/{215-multiple-type-arguments.problem.ts => 216-multiple-type-arguments.problem.ts} (100%)
 rename src/085-the-utils-folder/{215-multiple-type-arguments.solution.ts => 216-multiple-type-arguments.solution.ts} (100%)
 rename src/085-the-utils-folder/{216-create-group-by-function.problem.ts => 217-create-group-by-function.problem.ts} (100%)
 rename src/085-the-utils-folder/{216-create-group-by-function.solution.ts => 217-create-group-by-function.solution.ts} (100%)
 rename src/085-the-utils-folder/{217-type-predicates.problem.ts => 218-type-predicates.problem.ts} (100%)
 rename src/085-the-utils-folder/{217-type-predicates.solution.ts => 218-type-predicates.solution.ts} (100%)
 rename src/085-the-utils-folder/{218-assertion-functions.problem.ts => 219-assertion-functions.problem.ts} (100%)
 rename src/085-the-utils-folder/{218-assertion-functions.solution.ts => 219-assertion-functions.solution.ts} (100%)
 rename src/085-the-utils-folder/{219-function-overloads.problem.ts => 220-function-overloads.problem.ts} (100%)
 rename src/085-the-utils-folder/{219-function-overloads.solution.ts => 220-function-overloads.solution.ts} (100%)
 rename src/090-the-style-guide/{220-hungarian-notation.problem.ts => 221-hungarian-notation.problem.ts} (100%)
 rename src/090-the-style-guide/{220-hungarian-notation.solution.ts => 221-hungarian-notation.solution.ts} (100%)
 rename src/090-the-style-guide/{221-where-to-put-your-types.problem.ts => 222-where-to-put-your-types.problem.ts} (100%)
 rename src/090-the-style-guide/{221-where-to-put-your-types.solution.ts => 222-where-to-put-your-types.solution.ts} (100%)
 rename src/090-the-style-guide/{222-colocation-of-types.problem.ts => 223-colocation-of-types.problem.ts} (100%)
 rename src/090-the-style-guide/{222-colocation-of-types.solution.ts => 223-colocation-of-types.solution.ts} (100%)
 rename src/090-the-style-guide/{223-setting-up-eslint.explainer.ts => 224-setting-up-eslint.explainer.ts} (100%)
 rename src/090-the-style-guide/{224-explicit-any-rule-or-not.problem.ts => 225-explicit-any-rule-or-not.problem.ts} (100%)
 rename src/090-the-style-guide/{224-explicit-any-rule-or-not.solution.ts => 225-explicit-any-rule-or-not.solution.ts} (100%)
 rename src/090-the-style-guide/{225-explicit-return-types-or-not.problem.ts => 226-explicit-return-types-or-not.problem.ts} (100%)
 rename src/090-the-style-guide/{225-explicit-return-types-or-not.solution.ts => 226-explicit-return-types-or-not.solution.ts} (100%)
 rename src/090-the-style-guide/{226-any-vs-ts-ignore-vs-ts-expect-error.problem.ts => 227-any-vs-ts-ignore-vs-ts-expect-error.problem.ts} (100%)
 rename src/090-the-style-guide/{226-any-vs-ts-ignore-vs-ts-expect-error.solution.ts => 227-any-vs-ts-ignore-vs-ts-expect-error.solution.ts} (100%)
 rename src/090-the-style-guide/{227-dont-declare-type-and-value-with-the-same-name.problem.ts => 228-dont-declare-type-and-value-with-the-same-name.problem.ts} (100%)
 rename src/090-the-style-guide/{227-dont-declare-type-and-value-with-the-same-name.solution.ts => 228-dont-declare-type-and-value-with-the-same-name.solution.ts} (100%)
 rename src/090-the-style-guide/{228-types-vs-interfaces.problem.ts => 229-types-vs-interfaces.problem.ts} (100%)
 rename src/090-the-style-guide/{228-types-vs-interfaces.solution.ts => 229-types-vs-interfaces.solution.ts} (100%)
 rename src/090-the-style-guide/{229-dont-use-uppercase-function-object-string-boolean-as-types.problem.ts => 230-dont-use-uppercase-function-object-string-boolean-as-types.problem.ts} (100%)
 rename src/090-the-style-guide/{229-dont-use-uppercase-function-object-string-boolean-as-types.solution.ts => 230-dont-use-uppercase-function-object-string-boolean-as-types.solution.ts} (100%)
 rename src/090-the-style-guide/{230-dont-use-globally-available-types.problem.ts => 231-dont-use-globally-available-types.problem.ts} (100%)
 rename src/090-the-style-guide/{230-dont-use-globally-available-types.solution.ts => 231-dont-use-globally-available-types.solution.ts} (100%)
 rename src/090-the-style-guide/{231-how-strict-should-you-configure-ts.problem.ts => 232-how-strict-should-you-configure-ts.problem.ts} (100%)
 rename src/090-the-style-guide/{231-how-strict-should-you-configure-ts.solution.ts => 232-how-strict-should-you-configure-ts.solution.ts} (100%)
 rename src/090-the-style-guide/{232-dont-unnecessarily-widen-types.problem.ts => 233-dont-unnecessarily-widen-types.problem.ts} (100%)
 rename src/090-the-style-guide/{232-dont-unnecessarily-widen-types.solution.ts => 233-dont-unnecessarily-widen-types.solution.ts} (100%)
 rename src/095-migrating-from-javascript/{233-strict-file-by-file-vs-ramp-up-strictness.problem.ts => 234-strict-file-by-file-vs-ramp-up-strictness.problem.ts} (100%)
 rename src/095-migrating-from-javascript/{233-strict-file-by-file-vs-ramp-up-strictness.solution.ts => 234-strict-file-by-file-vs-ramp-up-strictness.solution.ts} (100%)
 rename src/095-migrating-from-javascript/{234-dependencies-first.problem.ts => 235-dependencies-first.problem.ts} (100%)
 rename src/095-migrating-from-javascript/{234-dependencies-first.solution.ts => 235-dependencies-first.solution.ts} (100%)
 rename src/095-migrating-from-javascript/{235-typing-third-party-modules.problem.ts => 236-typing-third-party-modules.problem.ts} (100%)
 rename src/095-migrating-from-javascript/{235-typing-third-party-modules.solution.ts => 236-typing-third-party-modules.solution.ts} (100%)
 rename src/095-migrating-from-javascript/{236-madge.problem.ts => 237-madge.problem.ts} (100%)
 rename src/095-migrating-from-javascript/{236-madge.solution.ts => 237-madge.solution.ts} (100%)
 rename src/095-migrating-from-javascript/{237-understanding-the-structure-of-ts-errors.problem.ts => 238-understanding-the-structure-of-ts-errors.problem.ts} (100%)
 rename src/095-migrating-from-javascript/{237-understanding-the-structure-of-ts-errors.solution.ts => 238-understanding-the-structure-of-ts-errors.solution.ts} (100%)
 rename src/095-migrating-from-javascript/{238-experiments-with-jsdoc.problem.ts => 239-experiments-with-jsdoc.problem.ts} (100%)
 rename src/095-migrating-from-javascript/{238-experiments-with-jsdoc.solution.ts => 239-experiments-with-jsdoc.solution.ts} (100%)
 rename src/095-migrating-from-javascript/{239-jsdoc-cannot-pass-types-to-functions.problem.ts => 240-jsdoc-cannot-pass-types-to-functions.problem.ts} (100%)
 rename src/095-migrating-from-javascript/{239-jsdoc-cannot-pass-types-to-functions.solution.ts => 240-jsdoc-cannot-pass-types-to-functions.solution.ts} (100%)

diff --git a/src/082-cjs-vs-esm/206-cant-import-esm-into-cjs.problem/src/index.js b/src/082-cjs-vs-esm/206-cant-import-esm-into-cjs.problem/src/index.js
index 614955b..2e46e5d 100644
--- a/src/082-cjs-vs-esm/206-cant-import-esm-into-cjs.problem/src/index.js
+++ b/src/082-cjs-vs-esm/206-cant-import-esm-into-cjs.problem/src/index.js
@@ -1,7 +1,7 @@
-const esmModule = require("./esm-module.js"); // cjs require
+const esModule = require("./esm-module.js"); // cjs require
 
 const main = async () => {
-  esmModule.default();
+  esModule.default();
 };
 
 main();
diff --git a/src/082-cjs-vs-esm/206-cant-import-esm-into-cjs.solution/src/index.js b/src/082-cjs-vs-esm/206-cant-import-esm-into-cjs.solution/src/index.js
index 7e3bcbd..0d1ae44 100644
--- a/src/082-cjs-vs-esm/206-cant-import-esm-into-cjs.solution/src/index.js
+++ b/src/082-cjs-vs-esm/206-cant-import-esm-into-cjs.solution/src/index.js
@@ -1,9 +1,9 @@
-// const esmModule = require("./esm-module.mjs"); // cjs require
+// const esModule = require("./esm-module.mjs"); // cjs require
 
 const main = async () => {
-  const esmModule = await import("./esm-module.mjs"); // Dynamic import
+  const esModule = await import("./esm-module.mjs"); // Dynamic import
 
-  esmModule.default();
+  esModule.default();
 };
 
 main();
diff --git a/src/082-cjs-vs-esm/207-mts-files.problem/src/index.ts b/src/082-cjs-vs-esm/207-mts-files.problem/src/index.ts
index 39c800a..4aea5d3 100644
--- a/src/082-cjs-vs-esm/207-mts-files.problem/src/index.ts
+++ b/src/082-cjs-vs-esm/207-mts-files.problem/src/index.ts
@@ -1,7 +1,7 @@
 const main = async () => {
-  const esmModule = await import("./esm-module.js"); // Dynamic import
+  const esModule = await import("./esm-module.js"); // Dynamic import
 
-  esmModule.default();
+  esModule.default();
 };
 
 main();
diff --git a/src/082-cjs-vs-esm/207-mts-files.solution/src/index.ts b/src/082-cjs-vs-esm/207-mts-files.solution/src/index.ts
index 7c4f341..e1b6fba 100644
--- a/src/082-cjs-vs-esm/207-mts-files.solution/src/index.ts
+++ b/src/082-cjs-vs-esm/207-mts-files.solution/src/index.ts
@@ -1,7 +1,7 @@
 const main = async () => {
-  const esmModule = await import("./esm-module.mjs"); // Dynamic import
+  const esModule = await import("./esm-module.mjs"); // Dynamic import
 
-  esmModule.default();
+  esModule.default();
 };
 
 main();
diff --git a/src/082-cjs-vs-esm/209-treat-ts-files-as-esm.problem/package.json b/src/082-cjs-vs-esm/209-treat-ts-files-as-esm.problem/package.json
new file mode 100644
index 0000000..c2c21b9
--- /dev/null
+++ b/src/082-cjs-vs-esm/209-treat-ts-files-as-esm.problem/package.json
@@ -0,0 +1,12 @@
+{
+  "name": "117-const-enums.explainer",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "dev": "nodemon --exec \"tsc && node dist/index.js\" ./src/index.ts"
+  },
+  "keywords": [],
+  "author": "Matt Pocock",
+  "devDependencies": {}
+}
diff --git a/src/082-cjs-vs-esm/209-treat-ts-files-as-esm.problem/src/esm-module.ts b/src/082-cjs-vs-esm/209-treat-ts-files-as-esm.problem/src/esm-module.ts
new file mode 100644
index 0000000..4f232f1
--- /dev/null
+++ b/src/082-cjs-vs-esm/209-treat-ts-files-as-esm.problem/src/esm-module.ts
@@ -0,0 +1,5 @@
+const hello = () => {
+  console.log("Hello!");
+};
+
+export default hello;
diff --git a/src/082-cjs-vs-esm/209-treat-ts-files-as-esm.problem/src/index.ts b/src/082-cjs-vs-esm/209-treat-ts-files-as-esm.problem/src/index.ts
new file mode 100644
index 0000000..ca1721f
--- /dev/null
+++ b/src/082-cjs-vs-esm/209-treat-ts-files-as-esm.problem/src/index.ts
@@ -0,0 +1,7 @@
+import esModule from "./esm-module";
+
+const main = async () => {
+  esModule();
+};
+
+main();
diff --git a/src/082-cjs-vs-esm/209-treat-ts-files-as-esm.problem/tsconfig.json b/src/082-cjs-vs-esm/209-treat-ts-files-as-esm.problem/tsconfig.json
new file mode 100644
index 0000000..0401340
--- /dev/null
+++ b/src/082-cjs-vs-esm/209-treat-ts-files-as-esm.problem/tsconfig.json
@@ -0,0 +1,13 @@
+{
+  "compilerOptions": {
+    "target": "ES2022",
+    "module": "NodeNext",
+    "moduleResolution": "NodeNext",
+    "outDir": "dist",
+    "esModuleInterop": true,
+    "strict": true,
+    "skipLibCheck": true,
+    "isolatedModules": true,
+    "verbatimModuleSyntax": true
+  },
+}
\ No newline at end of file
diff --git a/src/082-cjs-vs-esm/209-treat-ts-files-as-esm.solution/package.json b/src/082-cjs-vs-esm/209-treat-ts-files-as-esm.solution/package.json
new file mode 100644
index 0000000..0ee89b6
--- /dev/null
+++ b/src/082-cjs-vs-esm/209-treat-ts-files-as-esm.solution/package.json
@@ -0,0 +1,13 @@
+{
+  "name": "117-const-enums.explainer",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "dev": "nodemon --exec \"tsc && node dist/index.js\" ./src/index.ts"
+  },
+  "keywords": [],
+  "author": "Matt Pocock",
+  "devDependencies": {},
+  "type": "module"
+}
diff --git a/src/082-cjs-vs-esm/209-treat-ts-files-as-esm.solution/src/esm-module.ts b/src/082-cjs-vs-esm/209-treat-ts-files-as-esm.solution/src/esm-module.ts
new file mode 100644
index 0000000..4f232f1
--- /dev/null
+++ b/src/082-cjs-vs-esm/209-treat-ts-files-as-esm.solution/src/esm-module.ts
@@ -0,0 +1,5 @@
+const hello = () => {
+  console.log("Hello!");
+};
+
+export default hello;
diff --git a/src/082-cjs-vs-esm/209-treat-ts-files-as-esm.solution/src/index.ts b/src/082-cjs-vs-esm/209-treat-ts-files-as-esm.solution/src/index.ts
new file mode 100644
index 0000000..916d913
--- /dev/null
+++ b/src/082-cjs-vs-esm/209-treat-ts-files-as-esm.solution/src/index.ts
@@ -0,0 +1,7 @@
+import esModule from "./esm-module.js";
+
+const main = async () => {
+  esModule();
+};
+
+main();
diff --git a/src/082-cjs-vs-esm/209-treat-ts-files-as-esm.solution/tsconfig.json b/src/082-cjs-vs-esm/209-treat-ts-files-as-esm.solution/tsconfig.json
new file mode 100644
index 0000000..0401340
--- /dev/null
+++ b/src/082-cjs-vs-esm/209-treat-ts-files-as-esm.solution/tsconfig.json
@@ -0,0 +1,13 @@
+{
+  "compilerOptions": {
+    "target": "ES2022",
+    "module": "NodeNext",
+    "moduleResolution": "NodeNext",
+    "outDir": "dist",
+    "esModuleInterop": true,
+    "strict": true,
+    "skipLibCheck": true,
+    "isolatedModules": true,
+    "verbatimModuleSyntax": true
+  },
+}
\ No newline at end of file
diff --git a/src/085-the-utils-folder/209-intro-to-the-utils-folder.problem.ts b/src/085-the-utils-folder/210-intro-to-the-utils-folder.problem.ts
similarity index 100%
rename from src/085-the-utils-folder/209-intro-to-the-utils-folder.problem.ts
rename to src/085-the-utils-folder/210-intro-to-the-utils-folder.problem.ts
diff --git a/src/085-the-utils-folder/209-intro-to-the-utils-folder.solution.ts b/src/085-the-utils-folder/210-intro-to-the-utils-folder.solution.ts
similarity index 100%
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