SubsDotNet: November 2013

Wednesday 27 November 2013

Logic to Find Trim Prime Number in JS

Logic to Find Multiplication of Any Number and Any Range in JS

Tuesday 26 November 2013

Take Any String from User And Print How many Vowels are Present in that string

Like:-

a=1
e=1
i=1
o=1
u=1

Ans:-

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<script type="text/javascript">
function vowelCount()
{
var str = f1.t1.value;
var vowel = ['a', 'e', 'i', 'o', 'u'];

for (var i = 0; i < vowel.length; i++)
{
count = 0;
for (var j = 0; j < str.length; j++)
{
if (vowel[i] == str[j])
{
count++;
}
}
if(count!=0)
document.write(vowel[i] + '=' + count+"<br/>");
}

}
</script>
</head>
<body>
<form id="f1">
<div id="div1">
<fieldset style="width:30%;margin:auto;margin-top:20%;background:orange" align="center">
<legend>Input Area</legend>
<textarea placeholder="Enter any message.." id="t1" rows="10"></textarea><br />
<input type="button" onclick="vowelCount()" value="submit"/>
</fieldset>
</div>
</form>
</body>
</html>

Take Multiple values from user using Promt properties in JS

Monday 25 November 2013

Take a string input from user Replace the part of a string with desired character.

Write your own regular expression in JS for valid e-mail ID, username accepting alphabets and digits, and land line number.For land-line number your input should be in format of : countrycode-statecode-number Ex.(+91-40-40151017) here +91 is country code 40 is state code eight digit land line number .

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<script type="text/javascript">
function f1() {
var name = document.getElementById("txtName").value;
var regxname = /[a-z]{1}\d*/;
var checkname = regxname.test(name);

var email = document.getElementById("txtEmailId").value;
var regxemail = /^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,4})$/;
var checkemail = regxemail.test(email);

var phone = document.getElementById("txtLandLineNo").value;
var regxphone = /\d{2}([-]*)\d{2}([-]*)\d{8}/;
var checkphone = regxphone.test(phone);

if (name == null || name == "") {
alert("Please Enter Name");
return false;
}
if (checkname == null || checkname == "") {

alert("Name Enter Start with letters..");
return false;
}
// else {

// alert("Name Successfully Entered..");
// return true;
// }

if (email == null || email == "") {
alert("Please Enter Email");
return false;
}
if (checkemail == null || checkemail == "") {

alert("Email Enter with Proper Format..");
return false;
}
// else {

// alert("Email Successfully Entered..");
// return true;
// }

if (phone == null || phone == "") {
alert("Please Enter Land phone No..");
return false;
}
if (checkphone == null || checkphone == "") {

alert("Phone Enter with Proper Format..");
return false;
}
else {

alert("Phone Successfully Entered..");
return true;
}

}

</script>

</head>
<body>
<form action="HTMLPage2.htm" >
<div align="center" style="background-color: Silver" >
<table>
<tr>
<td colspan='3'>
                 
Registration Form
</td>
</tr>

<tr>
<td>Name</td>
<td>:</td>
<td>
<input id="txtName" type="text" />
</td>
</tr>
<tr>
<td>E-mail Id</td>
<td>:</td>
<td>
<input id="txtEmailId" type="text" />
</td>
</tr>
<tr>
<td>Land-Line Number</td>
<td>:</td>
<td>
<input id="txtLandLineNo" type="text" />
</td>
</tr>
<tr>
<td></td>
<td></td>
<td>

<input id="btnSubmit" type="button" value="Submit" onclick="return f1()" />
</td>
</tr>

</table>
</div>

</form>

</body>
</html>

Friday 22 November 2013

Logical Pattern Question And Answer in JS

Like:-

a
ei
oua
eiou
aeiou

Ans:-

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>

<script type="text/javascript">
function f1(){
var arr = ['a','e','i','o','u'];
var inc=0;
var num=document.getElementById("txtNum").value;
for (var row = 1; row <= num; row++) {
for (var space = num-row; space >= 1; space--) {
document.write(" ");
}
for (var column = 1; column <= row; column++) {
document.write(arr[inc]);

inc++;
if (inc == 5) {
inc = 0;
}

}
document.write("<br/>")

}
}
alert("hi");
</script>
</head>
<body>
<input type="text" id="txtNum" />
<br />
<input type="button" value="Button" onclick="f1()" />

</body>
</html>

Logical Pattern Questions And Answers in JS

Like:-

1
21
321
4321
54321

Ans:-

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title></title>
    <script type="text/javascript">
        function f1() {
            var num = document.getElementById("txtNum").value;
            for (var i = 1; i <= num; i++) {
                for (var sp = num-i; sp >= 1; sp--) {
                    document.write(" ");
                }
                for (var j = i; j >= 1; j--) {
                    document.write(j);
                }
                document.writeln("<br/>");
            }

        }

    </script>
</head>
<body>
<input id="txtNum" type="text" />
    <input id="btnPattern" type="button" value="button" onclick="f1()"/>

</body>
</html>

Logical Pattern Questions And Answers using JS

Like:-

1
12
123
1234
12345

Ans:-

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title></title>
    <script type="text/javascript">
        function f1() {
            var num = document.getElementById("txtNum").value;
            for (var i = 1; i <= num; i++) {

                for (var j =1; j <= i; j++) {
                    document.write(j);
                }
                document.writeln("<br/>");
            }

        }

    </script>

</head>
<body>
<input id="txtNum" type="text" />
    <input id="btnPattern" type="button" value="button" onclick="f1()"/>

</body>
</html>

Logical Pattern Questions And Answers in JS

Like:-

54321
   4321
     321
       21
         1

Ans:-

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title></title>

     <script type="text/javascript">
         function f1() {
             var num = document.getElementById("txtNum").value;
             for (var i = 1; i <= num; i++) {
                 for (var sp =1 ; sp <= i; sp++) {
                     document.write(" ");
                 }
                 for (var j = num - i + 1; j >= 1; j--) {
                     document.write(j);
                 }
                 document.writeln("<br/>");
             }

         }

    </script>
</head>
<body>
<input id="txtNum" type="text" />
    <input id="btnPattern" type="button" value="button" onclick="f1()"/>

</body>
</html>

Logical Pattern Questions And Answers using JS

Like:-
12345
1234
123
12
1

Ans:-

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title></title>
    <script type="text/javascript">
    function f1(){
    var num=document.getElementById("txtNum").value;
    for (var i = 1; i <= num; i++) {
        for (var j = 1; j <= num-i+1; j++) {
            document.write(j);
        }
        document.writeln("<br/>");
    }

    }

    </script>
</head>
<body>
    <input id="txtNum" type="text" />
    <input id="btnPattern" type="button" value="button" onclick="f1()"/>
</body>
</html>

Thursday 21 November 2013

Design the page as:-

Like

Dynamically add element in form
Select the element and hit Add to add it in form.

Result:-

Select the element and hit Add to add it in form.

Ans:-

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<head>

function f1(type) {

var cmbBox = document.createElement("input");

cmbBox.setAttribute("value", type);

cmbBox.setAttribute("type", type);

cmbBox.setAttribute("name", type);

var n = document.getElementById("p1");

n.appendChild(cmbBox);

}

</script>

</head>

<body>

<b>Dynamically add element in form</b>

<br />

Select the element and hit Add to add it in form.

<div>

<option value="textbox">TextBox</option>

<option value="Button">Button</option>

<option value="CheckBox">CheckBox</option>

<option value="Radio">RadioButton</option>

<option value="ComboBox">ComboBox</option>

</select>

</div>

<div>

</div>

</form>

</body>

</html>

Design Html Page as using java script In that If you add any subject it should go in tp Combobox List.

Like:-

Add TO ComboBox:

Combo Box:

Ans:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<head>

function f1(a,b) {

var txtBox = document.getElementById("txtSubject");

var cmbBox = document.getElementById("txtCombo");

var option = document.createElement("option");

option.text = txtBox.value;

option.value = txtBox.value;

if (txtCombo.add(option, null))

{

alert("hi")

}

</script>

</head>

<body>

<div>

Add TO ComboBox:

</div>

<br />

<div>

Combo Box:

</select>

</div>

</body>

</html>

Tuesday 19 November 2013

Logical Pattern Question using JavaScript:

Like

s=2
u=1
b=1
a=1
s=2

Ans:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>

<script>
function CallMe() {
var num = document.getElementById("txtString").value;
var count = 0;
for (var i = 0; i <= num.length - 1; i++) {

count = 0;
for (var j = 0; j <= num.length - 1; j++) {
if (num[i] == num[j]) {
count++;
}

}

document.write(num[i] + "=" + count + "<br/>");
}
}
alert("hi")

</script>
</head>
<body>
<input id="txtString" type="text" placeholder="Enter Any String.."/>
<input id="btnSubmit" type="button" value="button" onclick="CallMe()" />
</body>
</html>

Logical Pattern Question using JavaScript:

Like
1
2 2
3 3 3
4 4 4 4
5 5 5 5 5
6 6 6 6 6 6
7 7 7 7 7 7 7
8 8 8 8 8 8 8 8
9 9 9 9 9 9 9 9 9
10 10 10 10 10 10 10 10 10 10

Ans:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>

<script>
function CallMe() {
var num = document.getElementById("txtNum").value;

for (var i = 1; i <= num; i++)
{
for (var j = 1; j <= i; j++)
{

document.write(i+" ");

}
document.write("<br/> ");
}

}
alert("hi")

</script>
</head>
<body>
<input id="txtNum" type="text" />
<input id="btnSubmit" type="button" value="button" onclick="CallMe()" />
</body>
</html>

Logical Pattern Question using JavaScript:

Like
1
1 2
1 2 3
1 2 3 4
1 2 3 4 5
1 2 3 4 5 6
1 2 3 4 5 6 7
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9 10

Ans:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>

<script>
function CallMe() {
var num = document.getElementById("txtNum").value;

for (var i = 1; i <= num; i++)
{
for (var j = 1; j <= i; j++)
{

document.write(j+" ");

}
document.write("<br/> ");
}

}
alert("hi")

</script>
</head>
<body>
<input id="txtNum" type="text" />
<input id="btnSubmit" type="button" value="button" onclick="CallMe()" />
</body>
</html>

Create an HTML page to take a number as input from user and display the Multiplication table of the Number in grid as below format using JavaScript:

If User inputs 2 then output will be:-

2x1	=	2
2x2	=	4
2x3	=	6
2x4	=	8
2x5	=	10
2x6	=	12
2x7	=	14
2x8	=	16
2x9	=	18
2x10	=	20

Ans:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<head>

function sai() {

var no = document.getElementById("txtno").value;

for (var i = 1; i < 11; i++) {

var res = no * i;

document.write("<table border=1><tr><td>"+no+"</td><td>"+"*"+"</td><td>"+i+"</td><td>" + "=" + "</td><td>"+res+"</td></tr></table>");

}

alert(no)

}

</script>

</head>

<body>

<table>

<tr>

<td>

</td>

<td>

</td>

</tr>

</table>

</body>

</html>

Pattern Logical Questions in JavaScript Like:

12345
12345
12345
12345
12345

Ans:

<html>
<head>
<script type="text/javascript">
function f1(){
var num=document.getElementById("txtNum").value;
for(var i=1;i<=5;i++)
{
for(var j=1;j<=5;j++)
{
document.write(j);
}
document.write("<br/>")
}
}

</script>
</head>
<body>
<input type="text" id="txtNum"/>
<br/>
<input type="button" value="Submit" onclick="f1()"/>
</body>
</html>