Wednesday, August 1, 2018

Positive and Negative Number Checker Version 2 in JavaScript

Here is the version two of my program to check if the given number in JavaScript is a positive or negative number.

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Sample Program Output


Program Listing

index.htm

<html>
<head>
<style>
    body {
      font-family:arial;
  background-color:lightgreen;
  font-size:24px;
  font-weight:bold;
      }
</style>
<script>
function num()
{
var no;

no=Number(document.getElementById("no_input").value);

if (no==0) {
alert("The given number " + no + " is positive number.");
document.getElementById("no_input").value="";
document.getElementById("no_input").focus();
}
else if (no>=1) {
 alert("The given number " + no + " is positive number.");
 document.getElementById("no_input").value="";
 document.getElementById("no_input").focus();
}
else
{
 alert("The given number " + no + " is negative number.");
 document.getElementById("no_input").value="";
 document.getElementById("no_input").focus();
}

}
</script>
</head>
<body>
<br>
<h2> Positive and Negative Number Checker </h2>
<br>

Enter any Number: <input id="no_input">
<button onclick="num()">Check</button></br></br>
</body>
</html>


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