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app.js
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app.js
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document.write("<br>");
document.write("<h3>Question no 01</h3>");
document.write("<br>");
document.write("<h4>Result :</h4>");
document.write("<br>");
document.write('<button id="btn" onclick="ques1() ">Click Me</button>');
document.write("<br>");
document.write("<br>");
function ques1() {
var firstName = prompt("Enter your first name:");
var lastName = prompt("Enter your last name:");
var fullName = firstName + " " + lastName;
alert("Hello, " + fullName + "! Welcome.");
console.log("Hello, " + fullName + "! Welcome.");
}
// question no 2
document.write("<h3>Question no 02</h3>");
document.write("<br>");
document.write("<h4>Result :</h4>");
document.write("<br>");
document.write('<button id="btn" onclick="ques2();">Click Me</button>');
function ques2() {
var favoriteModel = prompt("What is your favorite mobile phone model?");
var inputLength = favoriteModel.length;
alert("The length of your favorite mobile phone model input is: " + inputLength);
console.log("The length of your favorite mobile phone model input is: " + inputLength);
}
document.write("<br>");
document.write("<br>");
//question no 3
document.write("<h3>Question no 03</h3>");
document.write("<br>");
document.write("<h4>Result :</h4>");
document.write("<br>");
document.write('<button id="btn" onclick="ques3()">Click Me</button>');
function ques3() {
var word = "Pakistani";
var indexOfN = word.indexOf("n");
alert("The index of letter 'n' in the word 'Pakistani' is: " + indexOfN);
console.log("The index of letter 'n' in the word 'Pakistani' is: " + indexOfN);
}
document.write("<br>");
document.write("<br>");
//question no 4
document.write("<h3>Question no 04</h3>");
document.write("<br>");
document.write("<h4>Result :</h4>");
document.write("<br>");
document.write('<button id="btn" onclick="ques4()">Click Me</button>');
function ques4() {
var word = "Hello World";
var lastIndexOfL = word.lastIndexOf("l");
alert("The last index of letter 'l' in the word 'Hello World' is: " + lastIndexOfL);
console.log("The last index of letter 'l' in the word 'Hello World' is: " + lastIndexOfL);
};
document.write("<br>");
document.write("<br>");
//question no 5
document.write("<h3>Question no 05</h3>");
document.write("<br>");
document.write("<h4>Result :</h4>");
document.write("<br>");
document.write('<button id="btn" onclick="ques5()">Click Me</button>');
function ques5() {
var word = "Pakistani";
var characterAtIndex3 = word.charAt(3);
console.log("The character at the 3rd index in the word 'Pakistani' is: " + characterAtIndex3);
alert("The character at the 3rd index in the word 'Pakistani' is: " + characterAtIndex3);
}
// document.write('<div id="pere"></div>')
document.write("<br>");
document.write("<br>");
//question no 6
document.write("<h3>Question no 06</h3>");
document.write("<br>");
document.write("<h4>Result :</h4>");
document.write("<br>");
document.write('<button id="btn" onclick="ques6()"">Click Me</button>');
function ques6() {
var firstName = prompt("Enter your first name:");
var lastName = prompt("Enter your last name:");
var fullName = firstName.concat(" ", lastName);
alert("Hello, " + fullName + "! Welcome.");
}
// document.write('<div id="result"></div>')
document.write("<br>");
document.write("<br>");
//question no 7
document.write("<h3>Question no 07</h3>");
document.write("<br>");
document.write("<h4>Result :</h4>");
document.write("<br>");
document.write('<button id="btn" onclick="ques7()">Click Me</button>');
function ques7() {
var word = "Hyderabad";
var replacedWord = word.replace("Hyder", "Islam");
alert("The replaced word is: " + replacedWord);
console.log("The replaced word is: " + replacedWord);
}
document.write("<br>");
document.write("<br>");
//question no 8
document.write("<h3>Question no 08</h3>");
document.write("<br>");
document.write("<h4>Result :</h4>");
document.write("<br>");
document.write('<button id="btn" onclick="ques8()">Click Me</button>');
function ques8() {
var message = "Ali and Sami are best friends. They play cricket and football together.";
var replacedMessage = message.split("and").join("&");
console.log("The modified message is: " + replacedMessage);
alert("The modified message is: " + replacedMessage);
}
document.write("<br>");
document.write("<br>");
//question no 9
document.write("<h3>Question no 09</h3>");
document.write("<br>");
document.write("<h4>Result :</h4>");
document.write("<br>");
document.write('<button id="btn" onclick="ques9()">Click Me</button>');
function ques9() {
var str = "472";
var num = parseInt(str);
console.log("Value: " + num + "\r" + "Type: " + typeof (num));
alert("Value: " + num + "\r" + "Type: " + typeof (num));
}
document.write("<br>");
document.write("<br>");
//question no 10
document.write("<h3>Question no 10</h3>");
document.write("<br>");
document.write("<h4>Result :</h4>");
document.write("<br>");
document.write('<button id="btn" onclick="ques10()">Click Me</button>');
function ques10() {
var userInput = prompt("Enter your input:");
var capitalizedInput = userInput.toUpperCase();
alert("Use Input: " + userInput + '\r' + 'Upper Case :' + capitalizedInput);
console.log("Use Input: " + userInput + '\r' + 'Upper Case :' + capitalizedInput);
}
document.write("<br>");
document.write("<br>");
//question no 11
document.write("<h3>Question no 11</h3>");
document.write("<br>");
document.write("<h4>Result :</h4>");
document.write("<br>");
document.write('<button id="btn" onclick="ques11()">Click Me</button>');
function ques11() {
var userInput = prompt("Enter your input:");
var words = userInput.toLowerCase().split(" ");
for (var i = 0; i < words.length; i++) {
words[i] = words[i].charAt(0).toUpperCase() + words[i].slice(1);
}
var titleCaseInput = words.join(" ");
alert("Input in title case: " + titleCaseInput);
console.log("Input in title case: " + titleCaseInput);
}
document.write("<br>");
document.write("<br>");
//question no 12
document.write("<h3>Question no 12</h3>");
document.write("<br>");
document.write("<h4>Result :</h4>");
document.write("<br>");
document.write('<button id="btn" onclick="ques12()">Click Me</button>');
function ques12() {
var num = prompt('For Example\r' + 35.36 + '\r Pu know');
var numAsString = num.toString();
var stringWithoutDot = numAsString.replace(".", "");
alert("Modified string without dot: " + stringWithoutDot);
console.log("Modified string without dot: " + stringWithoutDot);
}
document.write("<br>");
document.write("<br>");
//question no 13
document.write("<h3>Question no 13</h3>");
document.write("<br>");
document.write("<h4>Result :</h4>");
document.write("<br>");
document.write('<button id="btn" onclick="ques13()">Click Me</button>');
function ques13() {
var username = prompt("Enter your username:");
var specialSymbols = ['@', '.', ',', '!'];
function isSpecialSymbol(char) {
var charCode = char.charCodeAt(0);
return specialSymbols.includes(char);
}
function containsSpecialSymbols(username) {
for (var i = 0; i < username.length; i++) {
if (isSpecialSymbol(username[i])) {
return true;
}
}
return false;
}
if (containsSpecialSymbols(username)) {
// Prompt the user to enter a valid usernam
alert("Please enter a valid username without special symbols [@ . , !]");
} else {
// Username is valid, display it
alert("Your username is: " + username);
}
}
document.write("<br>");
document.write("<br>");
//question no 14
document.write("<h3>Question no 14</h3>");
document.write("<br>");
document.write("<h4>Result :</h4>");
document.write("<br>");
document.write('<button id="btn" onclick="ques14()">Click Me</button>');
function ques14() {
var A = ["cake", "apple pie", "cookie", "chips", "patties"];
var userInput = prompt("Enter an item to search:").toLowerCase();
var found = false;
for (var i = 0; i < A.length; i++) {
if (A[i].toLowerCase() === userInput) {
found = true;
break;
}
}
if (found) {
alert("Yes, the item '" + userInput + "' is found in the list.");
} else {
alert("No, the item '" + userInput + "' is not found in the list.");
}
}
document.write("<br>");
document.write("<br>");
//question no 15
document.write("<h3>Question no 15</h3>");
document.write("<br>");
document.write("<h4>Result :</h4>");
document.write("<br>");
document.write('<button id="btn" onclick="ques15()">Click Me</button>');
function ques15() {
function isLetter(char) {
var charCode = char.charCodeAt(0);
return (charCode >= 65 && charCode <= 90) || (charCode >= 97 && charCode <= 122);
}
function isDigit(char) {
var charCode = char.charCodeAt(0);
return charCode >= 48 && charCode <= 57;
}
// Prompt the user to enter a password
var password = prompt("Enter your password:");
// Check if the password meets the requirements
if (
password.length < 6 || // Check length
isDigit(password[0]) || // Check if it starts with a number
!/[a-zA-Z]/.test(password) || // Check if it contains alphabets
!/\d/.test(password) // Check if it contains numbers
) {
// If the password doesn't meet the requirements, prompt the user to enter a valid password
alert("Please enter a valid password that contains alphabets and numbers, does not start with a number, and is at least 6 characters long.");
} else {
// If the password meets the requirements, inform the user that it's valid
alert("Your password is valid.");
}
}
document.write("<br>");
document.write("<br>");
//question no 16
document.write("<h3>Question no 16</h3>");
document.write("<br>");
document.write("<h4>Result :</h4>");
document.write("<br>");
document.write('<button id="btn" onclick="ques16()">Click Me</button>');
function ques16() {
var university = "University of Karachi";
var universityArray = university.split(" ");
alert("Elements of the array:<br>");
for (var i = 0; i < universityArray.length; i++) {
alert((i + 1) + ". " + universityArray[i] + "<br>");
}
}
document.write("<br>");
document.write("<br>");
//question no 17
document.write("<h3>Question no 17</h3>");
document.write("<br>");
document.write("<h4>Result :</h4>");
document.write("<br>");
document.write('<button id="btn" onclick="ques17()">Click Me</button>');
function ques17() {
var userInput = prompt("Enter a string:");
if (userInput !== null && userInput !== "") {
var lastCharacter = userInput.charAt(userInput.length - 1);
alert("The last character of your input is: " + lastCharacter);
} else {
alert("No input provided. Please enter a string.");
}
}
document.write("<br>");
document.write("<br>");
//question no 18
document.write("<h3>Question no 18</h3>");
document.write("<br>");
document.write("<h4>Result :</h4>");
document.write("<br>");
document.write('<button id="btn" onclick="ques18()">Click Me</button>');
function ques18() {
var sentence = "The quick brown fox jumps over the lazy dog";
var lowercaseSentence = sentence.toLowerCase();
var wordToSearch = "the";
var words = lowercaseSentence.split(" ");
var count = 0;
for (var i = 0; i < words.length; i++) {
if (words[i] === wordToSearch) {
count++;
}
}
alert("The word '" + wordToSearch + "' occurs " + count + " times in the given string.");
console.log("The word '" + wordToSearch + "' occurs " + count + " times in the given string.");
}
document.write("<br>");
document.write("<br>");
document.write('<div style="color: blue;background-color: black;"><br><h1>Best OF luck<span style="font-size:50px;">👋</span></h1><br></div>')//👋