//Codes Of Javascript

Posts

character at specified position.

<!DOCTYPE html> <html> <head> <title></title> </head> <body> <script> function cal() { var r1=document.forms[0]; var a=document.frm.txt.value; var repeat=0; var c; var pos=prompt("Enter Position: "); var ch=a.charAt(parseInt(pos)-1); if(ch!="") alert("character at specified position is: "+ch); else alert("Please Enter value between "+ a.length); } </script> <form name="frm"> Enter the string: <input type="text" name="txt" ><br/> <input type="button" onclick ="cal()" name="b1" value="Submit"> </form> </body> </html>

volume of shpere

<input type="number" id="input_radius" placeholder="Enter the radius"> <input type="button" value="Find" id="input_button" > <script> function calculateVolume(){ let radius = document.getElementById("input_radius").value; let volume = (4/3)* Math.PI * Math.pow(radius, 3); alert("The volume of a sphere: "+volume.toFixed(2)); } let button=document.getElementById("input_button"); button.onclick=calculateVolume; </script>

Q.9:-10 Digit Number

//10 Digit Number <!DOCTYPE html> <html lang="en"> <head> <title>10 Digit Number</title> </head> <body> <center> <h1>10 Digit Number</h1> <script> var number='12345678950'; var length = number.length; document.write("length is:" + length+"<br>"); if (number.length == 10) { document.write(number +" is 10 digit number"); } else { document.write(number +" is not 10 digit number"); } </script> </center> </body> </html> 👉 Execute 👈

Q.1:-Palindrome Number

//Palindrome Number <!DOCTYPE html> <html> <body> <center> <h1>Palindrome Number</h1> <script> var num = 120; var copyNum = num; var reverse = 0; //reverse a number while(copyNum != 0) { reverse = reverse * 10; reverse = reverse + (copyNum % 10); copyNum = Math.floor(copyNum / 10); } // result if (num == reverse) document.write(num +" is a palindrome number"); else document.write(num +" is not a palindrome number"); </script> </center> </body> </html> 👉 Execute 👈

Q.1:-Multiplication Table

//Multiplication Table <!DOCTYPE html> <html lang="en"> <head> <title>Multiplication Table</title> </head> <body> <center> <h1>Multiplication Table</h1> <script> function addNumbers() { var number; var result = ""; number = Number(document.getElementById("number").value); for(var i = 1; i<= 10; i++){ result = result + "<p>"+number + "*" + i + "=" + number * i+"</p>"; } document.getElementById("result").innerHTML = result; } </script> <br> Enter the number : <input id="number" /><br><br> ...

Q.8:-Verification of valid Password

//Verification of Valid Password <html> <head> <title> Verification of Valid Password </title> </head> <script> function verifyPassword() { var pw = document.getElementById("pswd").value; var cpw = document.getElementById("cpswd").value; //check empty password field if(pw == "") { document.getElementById("message").innerHTML = "**Field Should Not Be Empty!"; return false; } if(cpw == "") { document.getElementById("message").innerHTML = "**Field Should Not Be Empty!"; return false; } if (pw == cpw) { alert("Password is Correct..!!"); } ...

//Function:-Arthmatic Operation

Function:-Arthmatic Operation <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title></title> </head> <body> <script type="text/javascript"> //Function Arthmatic Operation //Addition function add(a , b) //function name must start with letter or underscore. { var c = a + b; document.write("the add is:"+c+"<br>"); } add(40, 50); //Function Call:- You can many times call function. add (45, 45); //you can add many argumentsas you want. //Subtraction function sub(a , b) { var c = a - b; document.write("the sub is:"+c+"<br>"); } sub(100, 50); //100, 50 this value store in 'a' and 'b', then execute operation "100 - 50= 50". //Division function div(a , b) { var c = a / b; document.write("the div is:"+c+"<br>"); // +c+ is used to indicate which value should be print. } div(100, 4); //...

//Switch Case (String)

Switch Case (String) <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title></title> </head> <body> <script type="text/javascript"> //Switch String:- In Switch String we use words and numbers in "duble quotes". var a = 30; var b = 20; var c; var string = "six"; //which case you want to execute 'Enter' case. switch(string) { case "one": //the case label must be end with colon(:) { c = a + b; document.write("the add of a + b is:"+c+"<br>"); break; //It's necessary to use break after each block. } case "two": //case label must be unique. { c = a - b; document.write("the subtraction a - b is:"+c+"<br>");//"<br>" use for linebreak. break; //if you don't use it, then all cases executed. } case "three": { c = a / b; document.write(...

//Switch Case (Integer)

Switch Case (Integer) <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title></title> </head> <body> <script type="text/javascript"> //Switch Integer:- In Switch Integer we use Numbers(integers) var a = 30; var b = 20; var c; var int = 4; //which case you want to execute 'Enter' case value. switch(int) { case 1: //the case label must end with colon(:) { //Addition c = a + b; document.write("the add of a + b is:"+c+"<br>"); // document.write() use for print line. break; //It's necessary to use break after each block. } case 2: { //Subtract c = a - b; document.write("the subtraction a - b is:"+c+"<br>"); //"<br>" use for linebreak. break; //if you don't use it, then all cases executed. } case "3": { //Division c = a / b; document.write("the divisio...

//Switch Case (Character)

Switch Case (Character) <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title></title> </head> <body> <script type="text/javascript"> //Switch Char:- In switch char we use character for ex. + ,-, *, /, %, @ var a = 30; var b = 20; var c; var ch = '*'; //which case you want to execute 'Enter' case value. switch(ch) { //Addition case "+": //the case label must be end with colon(:) { c = a + b; document.write("the add of a + b is:"+c+"<br>");//"<br>" use for linebreak. break; //It's necessary to use break after each block. } //Subtract case "-": //case label must be unique. { c = a - b; document.write("the subtraction a - b is:"+c+"<br>"); // document.write() use for print line. break; //if you don't use it, then all cases executed. } //Division case ...

//If-Else-If:Grade

If-Else-If:Grade <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title></title> </head> <body> <script type="text/javascript"> var s1 = 38; var s2 = 34; var s3 = 35; var s4 = 35; var s5 = 36; var per; var per2; // Addition of All Subject Marks per = s1 + s2 + s3 + s4 + s5; //Separate The Arthmatic Opration Everytime.. per2 = per / 5; document.write("Persentage:"+per2+"<br>"); if (per2 >= 90) { document.write("Grade:A"); } else if (per2 >= 80) { document.write("Grade:B"); } else if (per2 >= 70) { document.write("Grade:C"); } else if (per2 >= 60) { document.write("Grade:D"); } else if (per2 >= 40) { document.write("Grade:E"); } else { document.write("Fail"); } </script> </body> </html> // Execute //...

//Forloop

For Loop <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title></title> </head> <body> <script type="text/javascript"> //forloop //print 10 to 20 var a; for (var a = 10; a <= 20; a++) // (a=10 is initialization statement);(a<=20 is test condition statement);(a++ is increment statement) //Initialization:-the control-variable is done first, using assignment statement such as a=10 or count=0. ...

// Dowhile

Do while <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title></title> </head> <body> <script type="text/javascript"> // Dowhile //print number 20 to 40 var a = 20; do // the body of the loop is excuted at least once time. { document.write("the value of a is: "+a+"<br>"); // document.write() use for print line. a++; //(a=20 <= 40) the condition is True; therefore execute conditional code. }while(a <= 40) ...

//while loop

While Loop <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title></title> </head> <body> <script type="text/javascript"> //while loop //print number from 10 to 20 var a = 10; while(a <= 20) //(a=10 <= 20) the condition is True; therefore excute conditional code. //when condition is true then excute conditional code; otherwise loop body skipped. { //the body of loop document.write("the value of a is:"+a+"<br>") a++; // a++ for this condition 'a <= 20'. value increase upto 20. } </script> </body> </html> // Excute //Output /*the value of a is: 10 the value of a is: 11 the value of a is: 12 the value of a is: 13 the value of a is: 14 the value of a is: 15 the value of a is: 16 the value of a is: 17 the value of a is: 18 the value of a is: 19 the value of a is: 20*/ ...

//Break And Continue Statement

Break And Continue Statement <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title></title> </head> <body> <script type="text/javascript"> var a = 10; while(a <= 20) { if (a == 15) //(a==15)when... block of code to be executed if the condition is True. { a++; document.write("in if statement of a is:"+a+"<br>") break; //Break :- when the loop iterates for first time, the value of i=10, the if statement result will be false, so the else condition is executed. //loop iterates again now i=15; if condition result will be 'True' and loop breaks. //you can also use 'Continue' //Continue:-when the loop iterate for the first time the value of i=10, the if statement result will be false, so the else condition 2 is implemented. //loop iterates again now i=15; if condition result will be 'True' and the code ...

//Relation Operator

Relation Operator <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title> </title> </head> <body> <script type="text/javascript"> var a = 21; var b = 10; //equal to if (a == b) // (a=21 == b=10) is False; Therefore a is not equal to b. //the two given values are equal to each other then result will be True, Otherwise it returns False. { document.write(" a is equal to b "+"<br>"); } else { document.write(" a is not equal to b"+"<br>"); // document.write() use for print line. } //grater than if (a > b) //(a=21 > b=10) is True; Therefore a is grater than b. //the first value is grater than the second value then result will be True, Otherwise it returns False. { document.write("a is greater than b"+"<br>"); } else { document.write("a is not greater than b...

//Logical Operator

Logical Operator <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title></title> </head> <body> <script type="text/javascript"> var a = 50; var b = 30; //Logical AND //we use also Logical NOT if (!((a > b) && (a == b))) // !(a=50 > b=30) is False && (a=50 != b=30) is True; Therefore this statement is False. // when both statement are True then result will be True. // '!'not is True statement consider False and False statement consider to True. { document.write("this statement is true <br>"); } else { document.write("this statement is false <br>"); // document.write() use for print line....

//Bitwise Operator

Bitwise Operator <!DOCTYPE html> <html> <head> <title></title> </head> <body> <script type="text/javascript"> var a = 50; //00110010 in binary. var b = 30; //00011110 in binary. var c = 0; var d = 0; var e = 0; var f = 0; var g = 0; var h = 0; //Bitwise AND c = a & b; // 00110010 & 00011110 = 00010010 i.e means is '18'. document.write("the value is: "+c+"<br>"); // <br> use for linebreake //Bitwise OR d = a | b; // 00110010 | 00011110 = 00111110 i.e means is '62'. document.write("the value is: "+d+"<br>"); // document.write() use for print line. //Bitwise Exclusive XOR e = a ^ b; // 00110010 ^ 00011110 = 00101100 i.e means is '44'. document.write("the value is: "+e+"<br>");// +e+ is used to indicate which value should be print. //Bitwise Complement f = ~a; // -(50+1)= i.e means is '-51'. document.write(...

//Assignment Operator

Assignment Operator <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title></title> </head> <body> <script type="text/javascript"> var a = 31; var c = 9; //Add AND c += a; // c = c + a; 9 + 31 = 40; document.write("the addition of c is :"+c+"<br>"); // document.write() use for print line. //Subtract ANd c -= a; // c = c - a; 40 - 31 = 9; document.write("the substraction of c is :"+c+"<br>");// <br> use for linebreake. //Multiply AND c *= a; // c = c * a; 9 * 31 = 279; document.write("the multiplication of c is :"+c+"<br>"); //Division c /= a; // c = c / a; 279 / 31 = 9; document.write("the division of c is :"+c+"<br>"); //Mod AND c %= a; // c = c % a; 9 % 9 = 9; document.write("the modulus of c is :"+c+"<br>"); </script> </body> </html> // Execu...

//Arthmatic Operator

Arthmatic Operator <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title></title> </head> <body> <script type="text/javascript"> var a= 21; //Variable def var b= 10; var c; //Addition c = a + b; document.write("the addition is :"+c+"<br>"); // document.write() use for print line. //Subtraction c = a - b; document.write("the subtraction is :"+c+"<br>"); // +c+ is used to indicate which value should be print. //Multiplication c = a * b; document.write("the multipliation is :"+c+"<br>");// <br> use for linebreake //Division c = a / b; document.write("the divition is :"+c+"<br>"); //Modulus c = a % b; document.write("the modulus is :"+c+"<br>"); </script> </body> </html> // Execute //Output /* the addition is :31 the subtraction is :11 the multipliation i...