Assignment_completed

src/array.js

@@ -11,7 +11,7 @@
  *    [0, 1, 2, 3, 4, 5], 5    => 5
  */
 function findElement(arr, value) {
-	throw new Error("Not implemented");
+	return arr.indexOf(value);
 }
 
 /**
@@ -27,7 +27,7 @@ function findElement(arr, value) {
  *    [] => []
  */
 function doubleArray(arr) {
-	throw new Error("Not implemented");
+	return arr.concat(arr);
 }
 
 /**
@@ -42,7 +42,13 @@ function doubleArray(arr) {
  *    [] => []
  */
 function getArrayOfPositives(arr) {
-	throw new Error("Not implemented");
+	var ar=[];
+	for(let i=0;i<arr.length;++i)
+	{
+		if(arr[i]>0)ar.push(arr[i]);
+	}
+	return ar;
+
 }
 
 /**
@@ -59,7 +65,13 @@ function getArrayOfPositives(arr) {
  *    [ false, 0, NaN, '', undefined ]   => [ ]
  */
 function removeFalsyValues(arr) {
-	throw new Error("Not implemented");
+	let ar=[];
+	for(let i=0;i<arr.length;++i)
+	{
+		if(arr[i])
+		ar.push(arr[i]);
+	}
+	return ar;
 }
 
 /**
@@ -73,7 +85,12 @@ function removeFalsyValues(arr) {
  *    [ 'angular', 'react', 'ember' ] => [ 7, 5, 5 ]
  */
 function getStringsLength(arr) {
-	throw new Error("Not implemented");
+	let ar=[];
+	for(let i=0;i<arr.length;++i)
+	{
+		ar.push(arr[i].length);
+	}
+	return ar;
 }
 
 /**
@@ -89,7 +106,12 @@ function getStringsLength(arr) {
  *   [ 1, 10, 100, 1000 ]  => 1111
  */
 function getItemsSum(arr) {
-	throw new Error("Not implemented");
+	let sum=0;
+	for(let i=0;i<arr.length;++i)
+	{
+		sum+=arr[i];
+	}
+	return sum;
 }
 
 module.exports = {

src/bulb.js

@@ -5,16 +5,30 @@ const BULB_OFF_URL = "https://i.postimg.cc/KjK1wL3c/bulb-off.png";
 TODO:
 Fetch the status of the 'flexSwitchCheckChecked' checkbox and call the appropiate function to turn the bulb on or off
 */
-function lightSwitch() {}
+function lightSwitch() {
+    var flag = document.getElementById("flexSwitchCheckChecked").checked
+    if (flag) {
+        bulb_on();
+    }
+    else {
+        bulb_off();
+    }
+}
 
 /*
 TODO:
 Set the "bulb" element's Image src to be the image specified by BULB_ON_URL
 */
-function bulb_on() {}
+function bulb_on() {
+    var bulb = document.getElementById("bulb");
+    bulb.src = BULB_ON_URL;
+}
 
 /*
 TODO:
 Set the "bulb" element's Image src to be the image specified by BULB_OFF_URL
 */
-function bulb_off() {}
+function bulb_off() {
+    var bulb = document.getElementById("bulb");
+    bulb.src = BULB_OFF_URL;
+}

src/conditionalAndLoops.js

@@ -19,7 +19,22 @@
  *
  */
 function getFizzBuzz(num) {
-	throw new Error("Not implemented");
+	if(num%3===0 && num%5===0)
+	{
+		let s = "FizzBuzz";
+		return s;
+	}
+	else if(num%3===0)
+	{
+		let s = "Fizz";
+		return s;
+	}
+	else if(num%5===0)
+	{
+		let s = "Buzz";
+		return s;
+	}
+	else return num;
 }
 
 /**
@@ -34,7 +49,12 @@ function getFizzBuzz(num) {
  *   10 => 3628800
  */
 function getFactorial(n) {
-	throw new Error("Not implemented");
+	let num=1;
+	for(let i=1;i<=n;++i)
+	{
+		num = num*i;
+	}
+	return num;
 }
 
 /**
@@ -50,7 +70,14 @@ function getFactorial(n) {
  *   -1,1  =>  0  ( = -1 + 0 + 1 )
  */
 function getSumBetweenNumbers(n1, n2) {
-	throw new Error("Not implemented");
+	let x = Math.min(n1,n2);
+	let y = Math.max(n1,n2);
+	let sum=0;
+	for(let i=x;i<=y;++i)
+	sum+=i;
+
+	return sum;
+
 }
 
 /**
@@ -69,7 +96,8 @@ function getSumBetweenNumbers(n1, n2) {
  *   10,10,10 =>  true
  */
 function isTriangle(a, b, c) {
-	throw new Error("Not implemented");
+	if(a+b>c && a+c>b && b+c>a)return true;
+	else return false;
 }
 
 /**
@@ -85,7 +113,7 @@ function isTriangle(a, b, c) {
  * 'noon' => 'noon'
  */
 function reverseString(str) {
-	throw new Error("Not implemented");
+	return str.split('').reverse().join('');
 }
 
 /**
@@ -110,7 +138,56 @@ function reverseString(str) {
  *   '{[(<{[]}>)]}' = true
  */
 function isBracketsBalanced(str) {
-	throw new Error("Not implemented");
+	// let stack = [];
+
+    // // Traversing the Expression
+    // for(let i = 0; i < expr.length; i++)
+    // {
+    //     let x = expr[i];
+
+    //     if (x == '(' || x == '[' || x == '{' || x=='<')
+    //     {
+
+    //         // Push the element in the stack
+    //         stack.push(x);
+    //         continue;
+    //     }
+
+    //     // If current character is not opening
+    //     // bracket, then it must be closing.
+    //     // So stack cannot be empty at this point.
+    //     if (stack.length == 0)
+    //         return false;
+
+    //     let check;
+    //     switch (x){
+    //     case ')':
+    //         check = stack.pop();
+    //         if (check == '{' || check == '[' || check=='<')
+    //             return false;
+    //         break;
+
+    //     case '}':
+    //         check = stack.pop();
+    //         if (check == '(' || check == '[' || check=='<')
+    //             return false;
+    //         break;
+
+    //     case ']':
+    //         check = stack.pop();
+    //         if (check == '(' || check == '{' ||  check=='<')
+    //             return false;
+    //         break;
+
+	// 	case '>':
+	// 		check = stack.pop();
+	// 		if (check == '(' || check == '{' ||  check=='[')
+	// 		return false;
+	// 		break;
+    //     }
+    // }
+
+    // return (stack.length == 0);
 }
 
 /**
@@ -169,7 +246,18 @@ function timespanToHumanString(startDate, endDate) {
  *    365, 10 => '365'
  */
 function toNaryString(num, n) {
-	throw new Error("Not implemented");
+	let s="";
+	while(num>=1)
+	{
+		let a = num%n;
+		let t = String(a);
+
+		s = s+t;
+		num = Math.floor(num/n);
+	}
+
+	return s.split('').reverse().join('');
+
 }
 
 module.exports = {

src/numbers.js

@@ -10,7 +10,7 @@
  *   5, 5  => 25
  */
 function getRectangleArea(width, height) {
-	throw new Error("Not implemented");
+	return width*height;
 }
 
 /**
@@ -26,7 +26,7 @@ function getRectangleArea(width, height) {
  *  -3, 3  => 0
  */
 function getAverage(value1, value2) {
-	throw new Error("Not implemented");
+	return Math.floor(value1+value2)/2;
 }
 
 /**
@@ -42,7 +42,8 @@ function getAverage(value1, value2) {
  *   5*x = 0         => 0
  */
 function getLinearEquationRoot(a, b) {
-	throw new Error("Not implemented");
+
+	return b/a*(-1);
 }
 
 /**
@@ -58,7 +59,8 @@ function getLinearEquationRoot(a, b) {
  *     0     => 0
  */
 function getLastDigit(value) {
-	throw new Error("Not implemented");
+
+	return Math.abs(value%10);
 }
 
 /**
@@ -73,7 +75,7 @@ function getLastDigit(value) {
  * '-525.5'     => -525.5
  */
 function parseNumberFromString(value) {
-	throw new Error("Not implemented");
+	return Number(value);
 }
 
 /**
@@ -94,7 +96,16 @@ function parseNumberFromString(value) {
  *   17 => true
  */
 function isPrime(n) {
-	throw new Error("Not implemented");
+	let cnt=0;
+	for(let i=1;i<=n;++i)
+	{
+		if(n%i===0)cnt++;
+	}
+	if(cnt==2)
+	{
+		return true;
+	}
+	else return false;
 }
 
 module.exports = {

src/strangerThings.js

@@ -11,7 +11,12 @@ function sleep(ms) {
 TODO:
 This function should return a list of all the distinct characters in UPPERCASE that have been typed in the textbox with the id "message"
 */
-function getCharacters() {}
+function getCharacters() {
+	li = []
+	var text = document.getElementById("message").value.toUpperCase();
+	li.push(text);
+	return li;
+}
 
 /* 
 Sets the CSS properties of the DOM elements to create a nice visual effect