swiggy-2022-bootcamp · pswaldia · Jan 4, 2022 · Jan 4, 2022
diff --git a/.gitignore b/.gitignore
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+.DS_Store
diff --git a/Day1/day1.html b/Day1/day1.html
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+<!DOCTYPE html>
+
+<head>
+    <meta content="text/html;charset=utf-8" http-equiv="Content-Type">
+    <meta content="utf-8" http-equiv="encoding">
+</head>
+
+<title>Pradeep Singh</title>
+
+<body>
+    <h1 style="text-align: center;">Test Program</h1>
+    <b>Loading JS File</b>
+    <script src="day1.js"></script>
+</body>
+
+</html>
diff --git a/Day1/day1.js b/Day1/day1.js
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+
+alert('Hello World');
+console.log('Hello World');
+console.error('This is an error');
+console.warn('This is a warning');
+
+
+// let age = 30;
+
+// age = 31;
+
+const name = 'Pradeep';
+const age = 24;
+const rating = 3.5;
+const isCool = true;
+const x = null;
+const y = undefined;
+let z;
+
+console.log(typeof z);
+
+
+console.log('My name is ' + name + ' and I am ' + age);
+
+console.log(`My name is ${name} and I am ${age}`);
+
+const s = 'Hello World';
+let val;
+val = s.length;
+
+
+// Change case
+val = s.toUpperCase();
+val = s.toLowerCase();
+val = s.substring(0, 5);
+
+// Split into array
+val = s.split('');
+
+
+
+// ARRAYS - Store multiple values in a variable
+const numbers = [1,2,3,4,5];
+const fruits = ['apples', 'oranges', 'pears', 'grapes'];
+console.log(numbers, fruits);
+
+// Get one value - Arrays start at 0
+console.log(fruits[1]);
+
+// Add value
+fruits[4] = 'blueberries';
+
+// Add value using push()
+fruits.push('strawberries');
+
+// Add to beginning
+fruits.unshift('mangos');
+
+// Remove last value
+fruits.pop();
+
+// // Check if array
+console.log(Array.isArray(fruits));
+
+// // Get index
+console.log(fruits.indexOf('oranges'));
+
+
+
+
+
diff --git a/Day2/day2.html b/Day2/day2.html
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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>Document</title>
+</head>
+
+<body>
+    <script src="day2.js"></script>
+</body>
+
+</html>
diff --git a/Day2/day2.js b/Day2/day2.js
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+let marks = [50, 80, 100, 90, 65, 10]
+    /*
+        different mark slabs : 
+            >=90 : grade A+
+            >=80 and <90 : grade A
+            >=70 and <80 : grade B+
+            >=60 and <70 : grade B
+            >=50 and <60 : grade C+
+            >=40 and <50 : grade C
+            <40 : fail   
+    */
+
+// forEach syntax and switch case.
+marks.forEach((mark) => {
+    let status;
+    if (mark >= 90) {
+        status = "A+"
+    } else if (mark >= 80 && mark < 90) {
+        status = "A"
+    } else if (mark >= 70 && mark < 80) {
+        status = "B+"
+    } else if (mark >= 60 && mark < 70) {
+        status = "B"
+    } else if (mark >= 50 && mark < 60) {
+        status = "C+"
+    } else if (mark >= 40 && mark < 50) {
+        status = "C"
+    } else {
+        status = "fail"
+    }
+    console.log(`Result when marks obtained = ${mark} : ${status}`)
+})
+
+// functions :
+//declaring a function without a parameter
+function functionName() {
+    console.log("creating a function without a parameter!")
+}
+functionName() // calling function by its name and with parentheses
+
+// function without parameter,  a function which make a number square
+function square() {
+    let num = 2
+    let sq = num * num
+    console.log(sq)
+}
+square()
+
+// function without parameter
+function addTwoNumbers() {
+    let numOne = 10
+    let numTwo = 20
+    let sum = numOne + numTwo
+
+    console.log(sum)
+}
+addTwoNumbers() // a function has to be called by its name to be executed
+
+// function without parameter but returning something.
+function printFullName() {
+    let firstName = 'Asabeneh'
+    let lastName = 'Yetayeh'
+    let space = ' '
+    let fullName = firstName + space + lastName
+    return fullName
+}
+console.log(printFullName())
+
+// parameterised function. 
+function areaOfCircle(r) {
+    let area = Math.PI * r * r
+    return area
+}
+console.log(areaOfCircle(10)) // should be called with one argument
+
+
+// with many parameters :  this function takes array as a parameter and sum up the numbers in the array
+function sumArrayValues(arr) {
+    let sum = 0;
+    for (let i = 0; i < arr.length; i++) {
+        sum = sum + arr[i];
+    }
+    return sum;
+}
+const numbers = [1, 2, 3, 4, 5];
+console.log(sumArrayValues(numbers));
+
+// with unlimited and variable number of arguments. 
+function sumAllNums() {
+    let sum = 0
+    for (let i = 0; i < arguments.length; i++) {
+        sum += arguments[i]
+    }
+    return sum
+}
+
+console.log(sumAllNums(1, 2, 3, 4)) // 10
+console.log(sumAllNums(10, 20, 13, 40, 10)) // 93
+console.log(sumAllNums(15, 20, 30, 25, 10, 33, 40)) // 173
+
+// with unlimited number of arguments in an arrow function. 
+const sumAllNumsArrow = (...args) => {
+    let sum = 0
+    for (const element of args) {
+        sum += element
+    }
+    return sum
+}
+
+console.log(sumAllNumsArrow(1, 2, 3, 4)) // 10
+console.log(sumAllNumsArrow(10, 20, 13, 40, 10)) // 93
+console.log(sumAllNumsArrow(15, 20, 30, 25, 10, 33, 40)) // 173
+
+
+// Arrow functions 
+const findSquare = n => {
+    return n * n
+}
+
+console.log(findSquare(2)) // -> 4
+
+// one line. implicit return.
+const findSquareOneLine = n => n * n // -> 4
+console.log(findSquareOneLine(2))