Merge pull request #53 from glaucia86/GL/4-final-solution-exercise-no…

…dejs-debug

Update and create final solutions for the 'debug Node.js apps' course

.github/dependabot.yml

@@ -10,7 +10,7 @@ updates:
         update-types: ["version-update:semver-patch"]
 
   - package-ecosystem: "npm"
-    directory: "node-dependencies/5-exercise-dependency"
+    directory: "nodejs-dependencies"
     schedule:
       interval: "weekly"
     open-pull-requests-limit: 10
@@ -19,14 +19,14 @@ updates:
         update-types: ["version-update:semver-patch"]
 
   - package-ecosystem: "npm"
-    directory: "nodejs-dependencies/7-exercise-dependency-management"
+    directory: "nodejs-debug"
     schedule:
       interval: "weekly"
     open-pull-requests-limit: 10
     ignore:
       - dependency-name: "*"
         update-types: ["version-update:semver-patch"]
-
+  
   - package-ecosystem: "npm"
     directory: "nodejs-http/exercise-express-middleware"
     schedule:

.github/workflows/build-code.yml

@@ -29,10 +29,18 @@ jobs:
         npm install
         npm run format
         npm run lint
-    - name: Module 3 - node-dependencies
+    - name: Module 2 - node-dependencies
       run: |
         cd node-dependencies
         npm install
         npm run format
         npm run lint
-        npm test
+        npm test
+    - name: Module 3 - nodejs-debug
+      run: |
+        cd node-dependencies
+        npm install
+        npm run format
+        npm run lint
+        npm test
+    

nodejs-debug/.editorconfig

@@ -0,0 +1,10 @@
+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+end_of_line = auto
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+quote_type = single

nodejs-debug/.eslintrc.json

@@ -0,0 +1,25 @@
+{
+    "env": {
+        "commonjs": true,
+        "es2021": true,
+        "node": true
+    },
+    "extends": "eslint:recommended",
+    "parser": "@babel/eslint-parser",
+    "parserOptions": {
+        "ecmaVersion": "latest",
+        "requireConfigFile": false,
+        "babelOptions": {
+            "parserOpts": {
+                "plugins": ["topLevelAwait"]
+            }
+        }
+    },
+    "rules": {
+        "no-console": "off",
+        "no-undef": "off",
+        "no-unused-vars": "off",
+        "no-shadow": "off",
+        "require-await": "error"
+    }
+}

nodejs-debug/4-exercise-built-debugger/fibonacci.js

@@ -0,0 +1,16 @@
+function fibonacci(n) {
+  let n1 = 0;
+  let n2 = 1;
+  let sum = 0;
+
+  for (let i = 2; i < n; i++) {
+    sum = n1 + n2;
+    n1 = n2;
+    n2 = sum;
+  }
+
+  return n === 0 ? n1 : n2;
+}
+
+const result = fibonacci(5);
+console.log(result);

nodejs-debug/fibonacci.js → nodejs-debug/4-final-solution-exercise-built-debugger/fibonnaci.js

@@ -3,12 +3,6 @@ function fibonacci(n) {
     let n2 = 1;
     let sum = 0;
 
-    const json = {
-      n1,
-      n2,
-      sum,
-    };
-
     for (let i = 2; i <= n; i++) {
       sum = n1 + n2;
       n1 = n2;

nodejs-debug/currency.js → nodejs-debug/6-exercise-debug-with-vscode/currency.js

@@ -36,4 +36,4 @@ function printForeignValues(value, sourceCurrency) {
 
 setExchangeRate(0.88, 'USD', 'EUR');
 setExchangeRate(107.4, 'USD', 'JPY');
-printForeignValues(10, 'EUR');
+printForeignValues(10, 'EUR');

nodejs-debug/6-final-solution-exercise-debug-with-vscode copy/currency.js

@@ -0,0 +1,45 @@
+const rates = {};
+
+function setExchangeRate(rate, sourceCurrency, targetCurrency) {
+  if (rates[sourceCurrency] === undefined) {
+    rates[sourceCurrency] = {};
+  }
+
+  if (rates[targetCurrency] === undefined) {
+    rates[targetCurrency] = {};
+  }
+
+  for (const currency in rates) {
+    if (currency !== targetCurrency) {
+      // Use a pivot rate for currencies that don't have the direct conversion rate
+      const pivotRate = currency === sourceCurrency ? 1 : rates[currency][sourceCurrency];
+      rates[currency][targetCurrency] = rate * pivotRate;
+      rates[targetCurrency][currency] = 1 / (rate * pivotRate);
+    }
+  }
+}
+
+function convertToCurrency(value, sourceCurrency, targetCurrency) {
+  const exchangeRate = rates[sourceCurrency][targetCurrency];
+  return exchangeRate && value * exchangeRate;
+}
+
+function formatValueForDisplay(value) {
+  return value.toFixed(2);
+}
+
+function printForeignValues(value, sourceCurrency) {
+  console.info(`The value of ${value} ${sourceCurrency} is:`);
+
+  for (const targetCurrency in rates) {
+    if (targetCurrency !== sourceCurrency) {
+      const convertedValue = convertToCurrency(value, sourceCurrency, targetCurrency);
+      const displayValue = formatValueForDisplay(convertedValue);
+      console.info(`- ${displayValue} ${targetCurrency}`);
+    }
+  }
+}
+
+setExchangeRate(0.88, 'USD', 'EUR');
+setExchangeRate(107.4, 'USD', 'JPY');
+printForeignValues(10, 'EUR');