rdip/java.html at master · PrathyushaChavva/rdip · GitHub

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<!DOCTYPE html>
<html>
<head>
	<title>JAVASCRIPT</title>
<body>
<h1>linking</h1>
<a href="javascript.txt">prathyusha</a><br>
<h1>printing on console</h1>
<script>
	var w=10;
	var v=20;
	console.log(w);
	console.log(v);
</script>
<h1>array number to string</h1>
<script>
var arr = [];
arr[0] = 1.2;
arr[1] = 2.2;
arr[2] = 4.3;
arr[3] = 4.4;
arr[4] = 5.5;
arr.splice(2, 0, 6);

var c=String(arr[3])
document.write(c);
document.write("<br />");
</script>
<h1>table creation,sum,avg calculation</h1>
<table id="table" border="1">
            <tr>
    <th> subjects</th>
    <th>marks</th>
  </tr>
  <tr>
    <td>Operating system</td>
    <td>80</td>
  </tr>
  <tr>
    <td>computer networks</td>
    <td>79</td>
  </tr>
  <tr>
    <td>object oriented analysis and design</td>
    <td>76</td>
  </tr>
  <tr>
    <td>software testing</td>
    <td>74</td>
  </tr>
  <tr>
    <td>principles of programming languages</td>
    <td>74</td>
  </tr>
  <tr>
    <td>R programming</td>
    <td>83</td>
  </tr>
</table>
<h1>calling function</h1>
        <span id="val"></span>

        <script>

            var table = document.getElementById("table"), avgVal, sumVal = 0,
                        rowCount = table.rows.length - 1;// minus the header

            for(var i = 1; i < table.rows.length; i++)
            {
                sumVal = sumVal + parseInt(table.rows[i].cells[1].innerHTML);
            }


function myFunction() {
  var table = document.getElementById("table");
  var row = table.insertRow(table.rows.length);
  var cell1 = row.insertCell(0);
  var cell2 = row.insertCell(1);
  cell1.innerHTML = "avg"
  cell2.innerHTML = parseInt(sumVal / rowCount);
  var row = table.insertRow(table.rows.length-1);
  var cell1 = row.insertCell(0);
  var cell2 = row.insertCell(1);
  cell1.innerHTML = "sum"
  cell2.innerHTML = sumVal;
}

myFunction();

</script>
<script>
var x=16.1;
var y=2;
document.write(Math.pow(x,y));
document.write("<br />");
document.write(Math.sqrt(x));
document.write("<br />");
document.write(Math.abs(x));
document.write("<br />");
document.write(Math.random());
document.write("<br />");
var l = Math.floor((Math.random() * 10) + 1);
document.write(l);
document.write("<br />");
var m = Math.ceil((Math.random() * 10) + 1);
document.write(m);
document.write("<br />");
var n = Math.round((Math.random() * 10) + 1);
document.write(n);
document.write("<br />");
document.write(Math.tanh(1));
document.write("<br />");

</script>
<h1>form creation and validation</h1>
<form id="myForm" method="get">
    <input type="text" name="Name" onkeypress="return (event.charCode > 64 &&
	event.charCode < 91) || (event.charCode > 96 && event.charCode < 123)" required="required"
	placeholder="Name"><br><br>

	 <input class="form-control  input-md text-box single-line" id="ContactNumber" max="9999999999" min="1000000000" name="ContactNumber" required="required" type="number" placeholder="Number">


  <p>subject interests:</p>
  <div class="check" required="required">
  <input type="checkbox" >
  <label for="course">healthcare administration</label><br>
  <input type="checkbox" >
  <label for="course"> mathematics</label><br>
  <input type="checkbox" >
  <label for="course">computer science</label><br>
  <input type="checkbox" >
  <label for="course">marketing</label><br>
  <input type="checkbox" >
  <label for="course"> petroleum engineering</label><br>
  <input type="checkbox" >
  <label for="course">polotical science</label><br>
  <input type="submit" >
</div>
</form>
<script>
function validate(){

	if(document.myForm.Name.value=="")
	{
		alert("Please fill out this field");
		document.myForm.Name.Focus();
		return false;
	}
	if(document.myForm.Number.value=="")
	{
		alert("Please fill out this field");
		document.myForm.Number.Focus();
		return false;
	}
}
validate();
</script>

    </body>
</html>