2026-08-18 14:27:34 +02:00
parent c7d26e1cd9
commit c6d9611e81
35 changed files with 1852 additions and 130 deletions
--- a/06_js-debug/unterricht/tag46/03_dry/03_range-helper.js
+++ b/06_js-debug/unterricht/tag46/03_dry/03_range-helper.js
@@ -91,3 +91,7 @@ function range(startOrEnd, end, step) {
    return rangeFromStartToEnd(0, startOrEnd);
  }
 }
+
+// range(5); // => [0, 1, 2, 3, 4]
+// range(1, 5); // => [1, 2, 3, 4]
+// range(0, 20, 5); // => [0, 5, 10, 15]
--- a/06_js-debug/unterricht/tag46/04_error-types/03_type-error.html
+++ b/06_js-debug/unterricht/tag46/04_error-types/03_type-error.html
@@ -33,6 +33,8 @@
          console.log('Hello, ' + name); // => 'Hello, 42' <- implizite Typkonvertierung
        }

+        console.log(3 <= '3px'); // <- implizite Typkonvertierung -> 3 <= NaN -> false
+
        greet(42);
      }
    </script>
--- a/06_js-debug/unterricht/tag46/05_logical-error/logical-error.html
+++ b/06_js-debug/unterricht/tag46/05_logical-error/logical-error.html
@@ -19,11 +19,11 @@
      {
        const n = 10;

-        // if (n % 2 === 0) {
-        //   console.log('odd'); // Annahme vertauscht
-        // } else {
-        //   console.log('even');
-        // }
+        if (n % 2 === 0) {
+          console.log('odd'); // Annahme vertauscht
+        } else {
+          console.log('even');
+        }

        // const evenNumbers = _.range(11).filter((n) => n % 2);
        const evenNumbers = _.range(11).filter((n) => n % 2 === 0);
--- a/06_js-debug/unterricht/tag47/01_demo-form-bug/assets/js/main.js
+++ b/06_js-debug/unterricht/tag47/01_demo-form-bug/assets/js/main.js
@@ -0,0 +1,57 @@
+'use strict';
+
+(() => {
+  // ===== DOM =====
+  const DOM = {
+    calculateForm: document.querySelector('#calculateForm'),
+    firstNumberInput: document.querySelector('#firstNumber'),
+    secondNumberInput: document.querySelector('#secondNumber'),
+    result: document.querySelector('#result'),
+  };
+
+  // console.log(DOM);
+
+  // ===== INIT =====
+  const init = () => {
+    DOM.calculateForm.noValidate = true; // DOM.calculateForm.setAttribute('novalidate','');
+    DOM.calculateForm.addEventListener('submit', handleFormSubmit);
+  };
+
+  // ===== EVENT HANDLERS =====
+  function handleFormSubmit(e) {
+    e.preventDefault();
+
+    if (hasInputsEmptyValues(DOM.firstNumberInput, DOM.secondNumberInput)) {
+      alert('Please enter a number in both fields');
+      return;
+    }
+
+    const num1 = getNumberValue(DOM.firstNumberInput);
+    const num2 = getNumberValue(DOM.secondNumberInput);
+
+    const sum = add(num1, num2);
+
+    displayResult(sum);
+    DOM.calculateForm.reset();
+  }
+
+  // ===== FUNCTIONS =====
+  const hasInputsEmptyValues = (inputOne, inputTwo) => {
+    // if (inputOne.value === '' || inputTwo.value === '') {
+    //   return true;
+    // } else {
+    //   return false;
+    // }
+    return inputOne.value === '' || inputTwo.value === '';
+  };
+
+  const getNumberValue = (input) => Number(input.value);
+  const add = (a, b) => Number(a) + Number(b);
+
+  const displayResult = (result) => {
+    DOM.result.textContent = result;
+  };
+
+  // ===== CALL INIT =====
+  init();
+})();
--- a/06_js-debug/unterricht/tag47/01_demo-form-bug/index.html
+++ b/06_js-debug/unterricht/tag47/01_demo-form-bug/index.html
@@ -0,0 +1,41 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Debugging Demo</title>
+    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.8/dist/css/bootstrap.min.css" rel="stylesheet" />
+    <script src="assets/js/main.js" defer></script>
+  </head>
+  <body>
+    <div class="container py-5">
+      <h1>Debugging Demo</h1>
+
+      <form id="calculateForm" class="mt-4">
+        <div class="col col-12 col-sm-10 col-lg-6">
+          <div class="row mb-3 align-items-center">
+            <label for="firstNumber" class="col-md-3 col-form-label">Number #1:</label>
+            <div class="col-sm-8">
+              <input type="number" id="firstNumber" name="firstNumber" class="form-control" required />
+            </div>
+          </div>
+        </div>
+
+        <div class="col col-12 col-sm-10 col-lg-6">
+          <div class="row mb-3 align-items-center">
+            <label for="secondNumber" class="col-md-3 col-form-label">Number #2:</label>
+            <div class="col-sm-8">
+              <input type="number" id="secondNumber" name="secondNumber" class="form-control" required />
+            </div>
+          </div>
+        </div>
+
+        <div class="mt-4 w-100">
+          <button type="submit" id="calculateBtn" class="btn btn-primary">Add Numbers</button>
+        </div>
+      </form>
+
+      <div class="alert alert-light mt-4"><strong>Result</strong>: <span id="result"></span></div>
+    </div>
+  </body>
+</html>
--- a/06_js-debug/unterricht/tag47/01_demo-form-bug/package-lock.json
+++ b/06_js-debug/unterricht/tag47/01_demo-form-bug/package-lock.json
@@ -0,0 +1,644 @@
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--- a/06_js-debug/unterricht/tag47/01_demo-form-bug/package.json
+++ b/06_js-debug/unterricht/tag47/01_demo-form-bug/package.json
@@ -0,0 +1,14 @@
+{
+  "name": "01_demo-form-bug",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "dev": "npx http-server -c-1 -p 3000"
+  },
+  "keywords": [],
+  "type": "module",
+  "devDependencies": {
+    "http-server": "^14.1.1"
+  }
+}