Init functions sample

2026-09-22 13:38:43 +00:00 · 2023-08-07 17:18:20 +07:00
parent 13e449c793
commit 6513cbd426
2 changed files with 79 additions and 0 deletions
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+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Javascript Training</title>
+  </head>
+  <body>
+    <h1>Javascript Training</h1>
+    <script src="./index.js"></script>
+  </body>
+</html>
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+// Functions
+function logger() {
+  console.log("My name is Nezumi");
+}
+
+// calling / running / invoking function
+logger();
+logger();
+
+function demoFunction(num1, num2) {
+  const juice = `Juice with ${num1} apples and ${num2} oranges.`;
+  return juice;
+}
+
+const variables1 = demoFunction(5, 0);
+console.log(variables1);
+
+const variables2 = demoFunction(2, 4);
+console.log(variables2);
+
+const num = Number("23");
+
+// Function Declarations vs. Expressions
+
+// Function declaration
+function declarationFunction(year) {
+  return 2023 - year;
+}
+const age1 = declarationFunction(2001);
+
+// Function expression
+const expressionFunction = function (year) {
+  return 2037 - year;
+};
+const age2 = expressionFunction(1991);
+
+console.log(age1, age2);
+
+// Arrow functions
+
+const arrowFunction = (birthYeah) => 2023 - birthYeah;
+const age3 = arrowFunction(1991);
+console.log(age3);
+
+const anotherArrowFunction = (birthYeah, fullName) => {
+  const age = 2037 - birthYeah;
+  const retirement = 65 - age;
+  // return retirement;
+  return `${fullName} retires in ${retirement} years`;
+};
+
+console.log(anotherArrowFunction(1991, "Nezumi"));
+console.log(anotherArrowFunction(1980, "Khue"));
+
+// Functions Calling Other Functions
+function cutFruitPieces(fruit) {
+  return fruit * 4;
+}
+
+function fruitProcessor(apples, oranges) {
+  const applePieces = cutFruitPieces(apples);
+  const orangePieces = cutFruitPieces(oranges);
+
+  const juice = `Juice with ${applePieces} piece of apple and ${orangePieces} pieces of orange.`;
+  return juice;
+}
+console.log(fruitProcessor(5, 8));