"JKB-JavascriptIntro"

lab.js

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+
+let name = "James Barclay";
+let age = 34;
+let favoriteColor = "Green";
+let likesCoding = true;
+
+console.log(name);
+console.log(age);
+console.log(favoriteColor);
+console.log(likesCoding);
+
+// What is a variable?
+// A variable is a container that stores data.
+
+// Difference between let and const:
+// let can change, const cannot.
+
+// What does console.log() do?
+// It prints information to the console.
+
+
+let temperature = 55;
+
+if (temperature < 55) {
+  console.log("It is cold.");
+} else {
+  console.log("It is warm.");
+}
+
+let password = "jb54321";
+
+if (password === "jb54321") {
+  console.log("Access granted");
+} else {
+  console.log("Access denied");
+}
+
+
+let hour = 10;
+
+if (hour < 10) {
+  console.log("Good morning");
+} else if (hour >= 10 && hour <= 17) {
+  console.log("Good afternoon");
+} else {
+  console.log("Good evening");
+}
+
+// What is the purpose of an if statement?
+// To make decisions in code.
+
+// When would you use else if?
+// When you have multiple conditions.
+
+// What does === check for?
+// It checks if values are equal and same type.
+
+
+
+function sayHello() {
+  console.log("Hello!");
+}
+sayHello();
+
+function favoriteFood(pasta) {
+  console.log("My favorite food is " + food);
+}
+favoriteFood("wings");
+
+
+function multiply(num1, num2) {
+  return num1 * num2;
+}
+console.log(multiply(4, 5));
+
+
+function isEven(num) {
+  return num % 2 === 0;
+}
+console.log(isEven(6));
+
+// Why are functions useful?
+// They let us reuse code.
+
+// What is a parameter?
+// A value passed into a function.
+
+// Difference between console.log() and return:
+// console.log prints, return gives back a value.
+
+
+
+// Task A
+for (let i = 1; i <= 10; i++) {
+  console.log(i);
+}
+
+// Task B
+for (let i = 2; i <= 20; i += 2) {
+  console.log(i);
+}
+
+// Task C
+let count = 5;
+while (count >= 1) {
+  console.log(count);
+  count--;
+}
+
+// Task D
+for (let i = 0; i < 5; i++) {
+  console.log("Practice makes progress");
+}
+
+// What is a loop used for?
+// To repeat code.
+
+// When might you use a for loop?
+// When you know how many times to repeat.
+
+// What could happen if a loop never ends?
+// Infinite loop.
+
+// Challenge 1
+function checkNumber(num) {
+  if (num > 0) {
+    console.log("Positive");
+  } else if (num < 0) {
+    console.log("Negative");
+  } else {
+    console.log("Zero");
+  }
+}
+checkNumber(-3);
+
+// Challenge 2
+function countdown(num) {
+  while (num >= 1) {
+    console.log(num);
+    num--;
+  }
+}
+countdown(5);
+
+// Challenge 3
+let studentName = "Jordan";
+let score = 85;
+
+function checkScore(score) {
+  if (score >= 90) {
+    console.log("Excellent work");
+  } else if (score >= 75) {
+    console.log("Good job");
+  } else {
+    console.log("Keep practicing");
+  }
+}
+checkScore(score);
+
+
+
+// Reflection Questions
+// Which topic felt easiest for you?
+// The Variables was the easiest.
+
+// Which topic felt most challenging?
+// Doing the Loops
+
+// How do they work together?
+// Variables store data and conditionals make decisions,
+// functions organize code, and loops repeat actions.
+
+// What is one question you still have?
+// How can I debug my code faster?