renamed

Chapter 06/Exercise 6.1

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+function adder(a, b) {
+    return a + b;
+}
+const val1 = 10; 
+const val2 = 20;
+console.log(adder(val1, val2));
+console.log(adder(20, 30));

Chapter 06/Exercise 6.2

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+const adj = ["super", "wonderful", "bad", "angry", "careful"];
+ 
+function myFun() {
+    const question = prompt("What is your name?");
+    const nameAdj = Math.floor(Math.random() * adj.length);
+    console.log(adj[nameAdj] + " " + question );
+}
+myFun();

Chapter 06/Exercise 6.3

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+const val1 = 10;
+const val2 = 5;
+let operat = "-";
+function cal(a, b, op) {
+  if (op == "-") {
+    console.log(a — b);
+  } else {
+    console.log(a + b);
+  }
+}
+cal(val1, val2, operat);

Chapter 06/Exercise 6.4

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+const myArr = [];
+ 
+for(let x=0; x<10; x++){
+  let val1 = 5 * x;
+  let val2 = x * x;
+  let res = cal(val1, val2, "+");
+  myArr.push(res);
+}
+console.log(myArr);
+function cal(a, b, op) {
+  if (op == "-") {
+    return a - b;
+  } else {
+    return a + b;
+  }
+}

Chapter 06/Exercise 6.5

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+let val = "1000";
+
+(function () {
+    let val = "100"; // local scope variable
+    console.log(val);
+})();
+
+let result = (function () {
+    let val = "Laurence";
+    return val;
+})();
+console.log(result);
+console.log(val);
+
+(function (val) {
+    console.log(`My name is ${val}`);
+})("Laurence");

Chapter 06/Exercise 6.6

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+function calcFactorial(nr) { 
+    console.log(nr);
+    if (nr === 0) { 
+        return 1; 
+    } 
+    else { 
+        return nr * calcFactorial(--nr); 
+    } 
+} 
+console.log(calcFactorial(4));

Chapter 06/Exercise 6.7

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+let start = 10; 
+function loop1(val) { 
+    console.log(val); 
+    if (val < 1) { 
+        return 
+    } 
+    return loop1(val - 1); 
+} 
+loop1(start); 
+function loop2(val) { 
+    console.log(val); 
+    if (val > 0) { 
+        val--; 
+        return loop2(val); 
+    } 
+    return; 
+} 
+loop2(start);

Chapter 06/Exercise 6.8

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+const test = function(val){
+    console.log(val);
+}
+test('hello 1');
+ 
+function test1(val){
+    console.log(val);
+}
+test1("hello 2");

Chapter 06/Project 1

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+const main = function counter(i) {
+console.log(i);
+if (i < 10) {
+    return counter(i + 1);
+}
+return;
+}
+main(0);

Chapter 06/Project 2

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+const one  = ()=> console.log('one'); 
+const two  = ()=> console.log('two'); 
+const three = () =>{
+    console.log('three'); 
+    one(); 
+    two(); 
+}
+const four = () =>{
+    console.log('four');  
+    setTimeout(one,0); 
+    three();
+}
+four();