Implemented Javascript intro lab

javascript-intro-lab/lab.js

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+
+function main() {
+
+    console.log("running main!");
+
+    //Part 1:
+
+    //What is a variable?
+    //A variable is a container used to store 
+    // important data to be used later.
+    let name = "Chris";
+    let age = 23;
+
+    let favoriteColor = "Yellow";
+    let likesCoding = true;
+
+    console.log(name + ", " + age + ", " + favoriteColor + ", " + likesCoding);
+
+
+
+    //Part 2:
+
+    //temperature check
+    let temperature = 25;
+
+    if (temperature < 60) {
+        console.log("It is cold.");
+    } else {
+        console.log("It is warm.");
+    }
+
+    //password check
+    const password = "jordaneldridge_likesrunning";
+
+    if (password === "javascript123") {
+        console.log("Access granted");
+    } else {
+        console.log("Access denied");
+    }
+
+    //hours check
+    const hours = 11;
+
+    if(hours < 12) {
+        console.log("Good morning");
+    }
+    else if (hours >= 12 && hours <= 17) {
+        console.log("Good afternoon");
+    }
+    else {
+        console.log("Good evening");
+    }
+
+
+    //1. What is the purpose of an if statement?
+
+    //It's used to check for conditional logic in the program
+    //If the condition is true, the code inside the if statement
+    //runs, and if its not then the code is skipped entirely.
+
+
+    //2. When would you use else if?
+
+    //You would use else if when you want to do a further
+    //evaluation after the initial if statement is false.
+    //You can also chain these together to keep the evaluations.
+    //going if the else if before the chained one is also false.
+
+
+
+    //3. === checks for absolute equality. (value and type)
+    //unlike == which checks for an equivalent value then 
+    // converts them to a common type during evaluation.
+
+
+    //Part 3)
+
+    sayHello("Coreye")
+
+    sayHello("Mahee Mahee Fish");
+
+
+    multiply(5,2);
+
+    isEven(4);
+
+
+    //1. Why are functions useful?
+
+    //2. They're useful for organization and not reapeating the same lines of code over and over.
+    //A parameter is the value that's passed into a function, they can be freely used within the scope of the function.
+
+    //3. Differences between console.log() and return?
+    //console.log just prints to the console, return has the function return a value back to the original scope of where it was called.
+
+
+
+    //Part 4)
+
+    console.log("Loop part 1:")
+    for(let i = 1; i <= 10; i++) {
+        console.log(i);
+    }
+    console.log("Loop part 2:");
+
+    for(let i = 2; i <= 20; i += 2) {
+        console.log(i);
+    }
+
+    console.log("Loop part 3:");
+    let count = 5;
+    while(count > 0) {
+        console.log(count);
+        count--;
+    }
+
+    console.log("Loop part 4:")
+    count = 5;
+    while(count > 0) {
+        console.log("Practice makes progress");
+        count--;
+    }
+
+    // 1. What is loop used for?
+
+    // The loop is used for repeat code multiple times until 
+    // a terminating condition is met.
+
+    //2. When might you use a for loop?
+
+    // I'll use a for loop when I need a definite counter to 
+    // iterate continously until a terminating condition is 
+    // reached.
+
+    //3. What could happen if a loop condition never becomes 
+    //   false?
+
+    // An error known as an infinite loop is occured, where 
+    // the program does not end until the user prompts it to.
+
+
+    // Part 5.
+    numberChecker(9);
+    countdownFunction(10);
+    progressChecker("Bob", 90);
+    classRoster();
+
+}
+
+function sayHello(name) {
+    console.log("Hi my name is, " + name);
+}
+
+function favoriteFood(food) {
+    console.log("My favorite food is " + food);
+}
+
+function multiply(num1, num2) {
+    return num1 * num2;
+}
+
+function isEven(num) {
+    return num % 2 == 0;
+}
+
+
+function numberChecker(num) {
+    if(num > 0) {
+        console.log("number is positive");
+    }
+    else if (num < 0) {
+        console.log("number is negative");
+    }
+    else {
+        console.log("number is zero!");
+    }
+}
+
+function countdownFunction(num) {
+    for(let i = num; i > 0; i--) {
+        console.log(num);
+        num -= 1;
+    }
+}
+
+function progressChecker(studentName, score) {
+    if(score >= 90) {
+        console.log(studentName + ", Excellent work!");
+    }
+    else if (score >= 75 && score <= 89) {
+        console.log(studentName + ", Good job!");
+    }
+    else {
+        console.log(studentName + ", Keep practicing...");
+    }
+}
+
+function classRoster() {
+    let arr = ["Jordan", "Coreye", "Terrance", "Samantha", "Stephanie"];
+
+    for(let i = 0; i < arr.length; i++) {
+        console.log(arr[i]);
+    }
+}
+
+
+main();
+
+
+
+
+// Reflection Questions
+
+//1. Which topic felt easiest for you
+
+//Definitely the variables, they are easy in every language!
+
+//2. Which topic felt most challenging?
+
+//Remembering the difference between == and ===, 
+// aswell as explaining how each part of the code works
+// had me spend more time on the assignment then usual.
+
+//3. How do variables, conditionals, functions, and looops
+//work together in a program?
+
+//They are like tools in a toolbox, you use them when you 
+//think you can get the job done with them. Some are more
+//efficient than others depending on the task.
+
+
+//4 One question I still have about Javascript?
+
+//Why is Javascript not utilized more in production environments?
+